625813568 has 14 divisors (see below), whose sum is σ = 1241848926. Its totient is φ = 312906752.

The previous prime is 625813543. The next prime is 625813577. The reversal of 625813568 is 865318526.

It can be written as a sum of positive squares in only one way, i.e., 622602304 + 3211264 = 24952^2 + 1792^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4889105 + ... + 4889232.

Almost surely, 2^625813568 is an apocalyptic number.

It is an amenable number.

625813568 is a deficient number, since it is larger than the sum of its proper divisors (616035358).

625813568 is an equidigital number, since it uses as much as digits as its factorization.

625813568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9778349 (or 9778339 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 625813568 is about 25016.2660683004. The cubic root of 625813568 is about 855.3587942742.

The spelling of 625813568 in words is "six hundred twenty-five million, eight hundred thirteen thousand, five hundred sixty-eight".