625994560 has 56 divisors (see below), whose sum is σ = 1527038856. Its totient is φ = 244285440.

The previous prime is 625994533. The next prime is 625994591. The reversal of 625994560 is 65499526.

625994560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23193856 + 602800704 = 4816^2 + 24552^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 625994560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10737 + ... + 36976.

It is an arithmetic number, because the mean of its divisors is an integer number (27268551).

Almost surely, 2^625994560 is an apocalyptic number.

It is an amenable number.

625994560 is an abundant number, since it is smaller than the sum of its proper divisors (901044296).

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

625994560 is a wasteful number, since it uses less digits than its factorization.

625994560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47771 (or 47761 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 46.

The square root of 625994560 is about 25019.8832930931. The cubic root of 625994560 is about 855.4412459737.

The spelling of 625994560 in words is "six hundred twenty-five million, nine hundred ninety-four thousand, five hundred sixty".