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2520274725 = 325229386249
BaseRepresentation
bin1001011000111000…
…0101011100100101
320111122100012222100
42112032011130211
520130142242400
61054030122313
7116311660503
oct22616053445
96448305870
102520274725
1110836a1781
125a4050399
133121aa927
1419ca0b673
15eb3d3100
hex96385725

2520274725 has 36 divisors (see below), whose sum is σ = 4669762500. Its totient is φ = 1297793280.

The previous prime is 2520274699. The next prime is 2520274751. The reversal of 2520274725 is 5274720252.

It is an interprime number because it is at equal distance from previous prime (2520274699) and next prime (2520274751).

It can be written as a sum of positive squares in 6 ways, for example, as 93431556 + 2426843169 = 9666^2 + 49263^2 .

It is not a de Polignac number, because 2520274725 - 25 = 2520274693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2520274725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 186600 + ... + 199649.

It is an arithmetic number, because the mean of its divisors is an integer number (129715625).

Almost surely, 22520274725 is an apocalyptic number.

2520274725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2520274725 is a deficient number, since it is larger than the sum of its proper divisors (2149487775).

2520274725 is a wasteful number, since it uses less digits than its factorization.

2520274725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386294 (or 386286 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 2520274725 is about 50202.3378439690. The cubic root of 2520274725 is about 1360.8678725632.

Adding to 2520274725 its reverse (5274720252), we get a palindrome (7794994977).

The spelling of 2520274725 in words is "two billion, five hundred twenty million, two hundred seventy-four thousand, seven hundred twenty-five".

Divisors: 1 3 5 9 15 25 29 45 75 87 145 225 261 435 725 1305 2175 6525 386249 1158747 1931245 3476241 5793735 9656225 11201221 17381205 28968675 33603663 56006105 86906025 100810989 168018315 280030525 504054945 840091575 2520274725