625625064 has 48 divisors (see below), whose sum is σ = 1695782400. Its totient is φ = 208371744.

The previous prime is 625625059. The next prime is 625625083. The reversal of 625625064 is 460526526.

625625064 is a `hidden beast` number, since 6 + 25 + 625 + 0 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 110937 + ... + 116439.

It is an arithmetic number, because the mean of its divisors is an integer number (35328800).

Almost surely, 2^625625064 is an apocalyptic number.

It is an amenable number.

625625064 is an abundant number, since it is smaller than the sum of its proper divisors (1070157336).

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

625625064 is a wasteful number, since it uses less digits than its factorization.

625625064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094 (or 7087 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 625625064 is about 25012.4981559220. The cubic root of 625625064 is about 855.2729035477.

The spelling of 625625064 in words is "six hundred twenty-five million, six hundred twenty-five thousand, sixty-four".