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2052543025 = 52132172412
BaseRepresentation
bin111101001010111…
…0101001000110001
312022001012222201001
41322111311020301
513200422334100
6535401042001
7101602220311
oct17225651061
95261188631
102052543025
11963674a55
12493486301
13269313100
14156855441
15c02e0d6a
hex7a575231

2052543025 has 81 divisors (see below), whose sum is σ = 3000795753. Its totient is φ = 1391769600.

The previous prime is 2052543019. The next prime is 2052543029. The reversal of 2052543025 is 5203452502.

The square root of 2052543025 is 45305.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 40 ways, for example, as 993951729 + 1058591296 = 31527^2 + 32536^2 .

It is not a de Polignac number, because 2052543025 - 27 = 2052542897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2052542984 and 2052543002.

It is not an unprimeable number, because it can be changed into a prime (2052543029) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 50062005 + ... + 50062045.

Almost surely, 22052543025 is an apocalyptic number.

2052543025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2052543025 is the 45305-th square number.

2052543025 is the 22653-rd centered octagonal number.

It is an amenable number.

2052543025 is a deficient number, since it is larger than the sum of its proper divisors (948252728).

2052543025 is a wasteful number, since it uses less digits than its factorization.

2052543025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The cubic root of 2052543025 is about 1270.8591588648.

Adding to 2052543025 its reverse (5203452502), we get a palindrome (7255995527).

The spelling of 2052543025 in words is "two billion, fifty-two million, five hundred forty-three thousand, twenty-five".

Divisors: 1 5 13 17 25 41 65 85 169 205 221 289 325 425 533 697 845 1025 1105 1445 1681 2665 2873 3485 3757 4225 5525 6929 7225 8405 9061 11849 13325 14365 17425 18785 21853 28577 34645 42025 45305 48841 59245 71825 93925 109265 117793 142885 154037 173225 226525 244205 284089 296225 371501 485809 546325 588965 714425 770185 1221025 1420445 1857505 2002481 2429045 2944825 3850925 4829513 6315517 7102225 9287525 10012405 12145225 24147565 31577585 50062025 82101721 120737825 157887925 410508605 2052543025