625564 has 12 divisors (see below), whose sum is σ = 1120504. Its totient is φ = 305424.

The previous prime is 625543. The next prime is 625589. The reversal of 625564 is 465526.

625564 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-4 number, since 4×625564⁴ (a number of 24 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1647 + ... + 1990.

2⁶²⁵⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

625564 is a deficient number, since it is larger than the sum of its proper divisors (494940).

625564 is a wasteful number, since it uses less digits than its factorization.

625564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684 (or 3682 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 625564 is about 790.9260395258. The cubic root of 625564 is about 85.5245076400.

The spelling of 625564 in words is "six hundred twenty-five thousand, five hundred sixty-four".