625605 has 16 divisors (see below), whose sum is σ = 1010880. Its totient is φ = 330368.

The previous prime is 625591. The next prime is 625609. The reversal of 625605 is 506526.

625605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 625605 - 2⁴ = 625589 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625605.

It is not an unprimeable number, because it can be changed into a prime (625609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2569 + ... + 2801.

It is an arithmetic number, because the mean of its divisors is an integer number (63180).

2⁶²⁵⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

625605 is a deficient number, since it is larger than the sum of its proper divisors (385275).

625605 is a wasteful number, since it uses less digits than its factorization.

625605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 625605 is about 790.9519580860. The cubic root of 625605 is about 85.5263760490.

The spelling of 625605 in words is "six hundred twenty-five thousand, six hundred five".