125508656 has 40 divisors (see below), whose sum is σ = 299293344. Its totient is φ = 49651200.

The previous prime is 125508653. The next prime is 125508673. The reversal of 125508656 is 656805521.

It is not an unprimeable number, because it can be changed into a prime (125508653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41645 + ... + 44556.

Almost surely, 2^125508656 is an apocalyptic number.

125508656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

125508656 is an abundant number, since it is smaller than the sum of its proper divisors (173784688).

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

125508656 is a wasteful number, since it uses less digits than its factorization.

125508656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86229 (or 86223 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 125508656 is about 11203.0645807297. The cubic root of 125508656 is about 500.6772901419.

The spelling of 125508656 in words is "one hundred twenty-five million, five hundred eight thousand, six hundred fifty-six".