12575051257 has 24 divisors (see below), whose sum is σ = 13927775040. Its totient is φ = 11330241120.

The previous prime is 12575051227. The next prime is 12575051261. The reversal of 12575051257 is 75215057521.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-12575051257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12575051227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1482007 + ... + 1490467.

It is an arithmetic number, because the mean of its divisors is an integer number (580323960).

Almost surely, 2^12575051257 is an apocalyptic number.

It is an amenable number.

12575051257 is a deficient number, since it is larger than the sum of its proper divisors (1352723783).

12575051257 is a wasteful number, since it uses less digits than its factorization.

12575051257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701 (or 8682 counting only the distinct ones).

The product of its (nonzero) digits is 122500, while the sum is 40.

The spelling of 12575051257 in words is "twelve billion, five hundred seventy-five million, fifty-one thousand, two hundred fifty-seven".