125881656 has 32 divisors (see below), whose sum is σ = 317765760. Its totient is φ = 41552352.

The previous prime is 125881649. The next prime is 125881673. The reversal of 125881656 is 656188521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22990 + ... + 27933.

It is an arithmetic number, because the mean of its divisors is an integer number (9930180).

Almost surely, 2^125881656 is an apocalyptic number.

It is an amenable number.

125881656 is an abundant number, since it is smaller than the sum of its proper divisors (191884104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125881656 is a wasteful number, since it uses less digits than its factorization.

125881656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51035 (or 51031 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 125881656 is about 11219.6994612155. The cubic root of 125881656 is about 501.1727883177.

The spelling of 125881656 in words is "one hundred twenty-five million, eight hundred eighty-one thousand, six hundred fifty-six".