2571657500625 has 80 divisors (see below), whose sum is σ = 4566820249728. Its totient is φ = 1282320000000.

The previous prime is 2571657500623. The next prime is 2571657500681. The reversal of 2571657500625 is 5260057561752.

It is not a de Polignac number, because 2571657500625 - 2¹ = 2571657500623 is a prime.

It is a super-2 number, since 2×2571657500625² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2571657500623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4545975 + ... + 5080275.

Almost surely, 2^{2571657500625} is an apocalyptic number.

2571657500625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2571657500625 is a deficient number, since it is larger than the sum of its proper divisors (1995162749103).

2571657500625 is a wasteful number, since it uses less digits than its factorization.

2571657500625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534492 (or 534477 counting only the distinct ones).

The product of its (nonzero) digits is 4410000, while the sum is 51.

The spelling of 2571657500625 in words is "two trillion, five hundred seventy-one billion, six hundred fifty-seven million, five hundred thousand, six hundred twenty-five".