256725370125610 has 32 divisors (see below), whose sum is σ = 497309473027152. Its totient is φ = 95065132231680.

The previous prime is 256725370125607. The next prime is 256725370125617. The reversal of 256725370125610 is 16521073527652.

It can be written as a sum of positive squares in 8 ways, for example, as 156245175037249 + 100480195088361 = 12499807^2 + 10023981^2 .

It is a super-2 number, since 2×256725370125610² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256725370125617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12378262057 + ... + 12378282796.

Almost surely, 2^{256725370125610} is an apocalyptic number.

256725370125610 is a deficient number, since it is larger than the sum of its proper divisors (240584102901542).

256725370125610 is a wasteful number, since it uses less digits than its factorization.

256725370125610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24756544938.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 256725370125610 in words is "two hundred fifty-six trillion, seven hundred twenty-five billion, three hundred seventy million, one hundred twenty-five thousand, six hundred ten".