125655507 has 12 divisors (see below), whose sum is σ = 182090064. Its totient is φ = 83499120.

The previous prime is 125655499. The next prime is 125655511. The reversal of 125655507 is 705556521.

It is a happy number.

It is not a de Polignac number, because 125655507 - 2³ = 125655499 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (125655577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19648 + ... + 25245.

It is an arithmetic number, because the mean of its divisors is an integer number (15174172).

Almost surely, 2^125655507 is an apocalyptic number.

125655507 is a deficient number, since it is larger than the sum of its proper divisors (56434557).

125655507 is a wasteful number, since it uses less digits than its factorization.

125655507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45210 (or 45207 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 36.

The square root of 125655507 is about 11209.6167195850. The cubic root of 125655507 is about 500.8724859842.

The spelling of 125655507 in words is "one hundred twenty-five million, six hundred fifty-five thousand, five hundred seven".