125576792557 has 4 divisors (see below), whose sum is σ = 125578745980. Its totient is φ = 125574839136.

The previous prime is 125576792527. The next prime is 125576792609. The reversal of 125576792557 is 755297675521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9499621156 + 116077171401 = 97466^2 + 340701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125576792557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125576792495 and 125576792504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125576792527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876882 + ... + 1009987.

It is an arithmetic number, because the mean of its divisors is an integer number (31394686495).

Almost surely, 2^125576792557 is an apocalyptic number.

It is an amenable number.

125576792557 is a deficient number, since it is larger than the sum of its proper divisors (1953423).

125576792557 is an equidigital number, since it uses as much as digits as its factorization.

125576792557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953422.

The product of its digits is 46305000, while the sum is 61.

The spelling of 125576792557 in words is "one hundred twenty-five billion, five hundred seventy-six million, seven hundred ninety-two thousand, five hundred fifty-seven".