625712864 has 96 divisors (see below), whose sum is σ = 1501516800. Its totient is φ = 250698240.

The previous prime is 625712831. The next prime is 625712873. The reversal of 625712864 is 468217526.

625712864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335294 + ... + 337154.

It is an arithmetic number, because the mean of its divisors is an integer number (15640800).

Almost surely, 2^625712864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625712864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750758400).

625712864 is an abundant number, since it is smaller than the sum of its proper divisors (875803936).

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

625712864 is a wasteful number, since it uses less digits than its factorization.

625712864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1976 (or 1968 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 625712864 is about 25014.2532169162. The cubic root of 625712864 is about 855.3129112417.

The spelling of 625712864 in words is "six hundred twenty-five million, seven hundred twelve thousand, eight hundred sixty-four".