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25252020412 = 2279193414049
BaseRepresentation
bin10111100001001000…
…110100000010111100
32102011212010112211021
4113201020310002330
5403204004123122
615333422233524
71552524426523
oct274110640274
972155115737
1025252020412
11a78911a763
124a88a258a4
1324c5805718
141317a2b4ba
159cbda51c7
hex5e12340bc

25252020412 has 24 divisors (see below), whose sum is σ = 44982392000. Its totient is φ = 12401565696.

The previous prime is 25252020397. The next prime is 25252020419. The reversal of 25252020412 is 21402025252.

It is a super-3 number, since 3×252520204123 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252020419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146037 + ... + 268012.

Almost surely, 225252020412 is an apocalyptic number.

It is an amenable number.

25252020412 is a deficient number, since it is larger than the sum of its proper divisors (19730371588).

25252020412 is a wasteful number, since it uses less digits than its factorization.

25252020412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414325 (or 414323 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

Adding to 25252020412 its reverse (21402025252), we get a palindrome (46654045664).

The spelling of 25252020412 in words is "twenty-five billion, two hundred fifty-two million, twenty thousand, four hundred twelve".

Divisors: 1 2 4 79 158 193 316 386 772 15247 30494 60988 414049 828098 1656196 32709871 65419742 79911457 130839484 159822914 319645828 6313005103 12626010206 25252020412