625905 has 24 divisors (see below), whose sum is σ = 1240512. Its totient is φ = 285984.

The previous prime is 625883. The next prime is 625909. The reversal of 625905 is 509526.

625905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 625905 - 2⁷ = 625777 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625905.

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 23 ways as a sum of consecutive naturals, for example, 679 + ... + 1308.

It is an arithmetic number, because the mean of its divisors is an integer number (51688).

2⁶²⁵⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

625905 is a deficient number, since it is larger than the sum of its proper divisors (614607).

625905 is a wasteful number, since it uses less digits than its factorization.

625905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 625905 is about 791.1415802497. The cubic root of 625905 is about 85.5400448509.

The spelling of 625905 in words is "six hundred twenty-five thousand, nine hundred five".