625564079 has 32 divisors (see below), whose sum is σ = 776563200. Its totient is φ = 491765760.

The previous prime is 625564063. The next prime is 625564087. The reversal of 625564079 is 970465526.

It is a cyclic number.

It is not a de Polignac number, because 625564079 - 2⁴ = 625564063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625564279) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 975599 + ... + 976239.

It is an arithmetic number, because the mean of its divisors is an integer number (24267600).

Almost surely, 2^625564079 is an apocalyptic number.

625564079 is a deficient number, since it is larger than the sum of its proper divisors (150999121).

625564079 is a wasteful number, since it uses less digits than its factorization.

625564079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 625564079 is about 25011.2790356671. The cubic root of 625564079 is about 855.2451124015.

The spelling of 625564079 in words is "six hundred twenty-five million, five hundred sixty-four thousand, seventy-nine".