15725151057 has 32 divisors (see below), whose sum is σ = 26161920000. Its totient is φ = 8162219520.

The previous prime is 15725151053. The next prime is 15725151059. The reversal of 15725151057 is 75015152751.

It is not a de Polignac number, because 15725151057 - 2² = 15725151053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15725151053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261268 + ... + 315770.

It is an arithmetic number, because the mean of its divisors is an integer number (817560000).

Almost surely, 2^15725151057 is an apocalyptic number.

It is an amenable number.

15725151057 is a deficient number, since it is larger than the sum of its proper divisors (10436768943).

15725151057 is a wasteful number, since it uses less digits than its factorization.

15725151057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55773.

The product of its (nonzero) digits is 61250, while the sum is 39.

The spelling of 15725151057 in words is "fifteen billion, seven hundred twenty-five million, one hundred fifty-one thousand, fifty-seven".