125666825 has 12 divisors (see below), whose sum is σ = 162602688. Its totient is φ = 96162000.

The previous prime is 125666819. The next prime is 125666833. The reversal of 125666825 is 528666521.

It is not a de Polignac number, because 125666825 - 2⁴ = 125666809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108701 + ... + 109850.

It is an arithmetic number, because the mean of its divisors is an integer number (13550224).

Almost surely, 2^125666825 is an apocalyptic number.

It is an amenable number.

125666825 is a deficient number, since it is larger than the sum of its proper divisors (36935863).

125666825 is a wasteful number, since it uses less digits than its factorization.

125666825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218584 (or 218579 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 125666825 is about 11210.1215426060. The cubic root of 125666825 is about 500.8875236713.

It can be divided in two parts, 12566 and 6825, that added together give a palindrome (19391).

The spelling of 125666825 in words is "one hundred twenty-five million, six hundred sixty-six thousand, eight hundred twenty-five".