125564004 has 36 divisors (see below), whose sum is σ = 320488896. Its totient is φ = 41447088.

The previous prime is 125563979. The next prime is 125564009. The reversal of 125564004 is 400465521.

125564004 is a `hidden beast` number, since 1 + 255 + 6 + 400 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (125564009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13224 + ... + 20639.

Almost surely, 2^125564004 is an apocalyptic number.

It is an amenable number.

125564004 is an abundant number, since it is smaller than the sum of its proper divisors (194924892).

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

125564004 is a wasteful number, since it uses less digits than its factorization.

125564004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33976 (or 33971 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 125564004 is about 11205.5345254031. The cubic root of 125564004 is about 500.7508771359.

The spelling of 125564004 in words is "one hundred twenty-five million, five hundred sixty-four thousand, four".