625685 has 12 divisors (see below), whose sum is σ = 799428. Its totient is φ = 470016.

The previous prime is 625663. The next prime is 625697. The reversal of 625685 is 586526.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 4 + 625681 = 2^2 + 791^2 .

It is not a de Polignac number, because 625685 - 2⁶ = 625621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1229 + ... + 1661.

It is an arithmetic number, because the mean of its divisors is an integer number (66619).

2⁶²⁵⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

625685 is a deficient number, since it is larger than the sum of its proper divisors (173743).

625685 is a wasteful number, since it uses less digits than its factorization.

625685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 455 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 625685 is about 791.0025284410. The cubic root of 625685 is about 85.5300214900.

The spelling of 625685 in words is "six hundred twenty-five thousand, six hundred eighty-five".