625906 has 16 divisors (see below), whose sum is σ = 1020600. Its totient is φ = 286720.

The previous prime is 625883. The next prime is 625909. The reversal of 625906 is 609526.

625906 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 497025 + 128881 = 705^2 + 359^2 .

It is not an unprimeable number, because it can be changed into a prime (625909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170 + ... + 1618.

2⁶²⁵⁹⁰⁶ is an apocalyptic number.

625906 is a deficient number, since it is larger than the sum of its proper divisors (394694).

625906 is a wasteful number, since it uses less digits than its factorization.

625906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 625906 is about 791.1422122476. The cubic root of 625906 is about 85.5400904063.

The spelling of 625906 in words is "six hundred twenty-five thousand, nine hundred six".