625555 has 16 divisors (see below), whose sum is σ = 874944. Its totient is φ = 420480.

The previous prime is 625543. The next prime is 625589. The reversal of 625555 is 555526.

625555 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 625555 - 2¹³ = 617363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1989 + ... + 2281.

It is an arithmetic number, because the mean of its divisors is an integer number (54684).

2⁶²⁵⁵⁵⁵ is an apocalyptic number.

625555 is a deficient number, since it is larger than the sum of its proper divisors (249389).

625555 is a wasteful number, since it uses less digits than its factorization.

625555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366.

The product of its digits is 7500, while the sum is 28.

The square root of 625555 is about 790.9203499721. The cubic root of 625555 is about 85.5240974905.

The spelling of 625555 in words is "six hundred twenty-five thousand, five hundred fifty-five".