625388 has 6 divisors (see below), whose sum is σ = 1094436. Its totient is φ = 312692.

The previous prime is 625369. The next prime is 625397. The reversal of 625388 is 883526.

625388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×625388² = 782220301088, which contains 22 as substring.

It is an Ulam number.

It is an unprimeable number.

625388 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78170 + ... + 78177.

It is an arithmetic number, because the mean of its divisors is an integer number (182406).

2⁶²⁵³⁸⁸ is an apocalyptic number.

It is an amenable number.

625388 is a deficient number, since it is larger than the sum of its proper divisors (469048).

625388 is a wasteful number, since it uses less digits than its factorization.

625388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156351 (or 156349 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 625388 is about 790.8147697154. The cubic root of 625388 is about 85.5164862250.

The spelling of 625388 in words is "six hundred twenty-five thousand, three hundred eighty-eight".