624625 has 16 divisors (see below), whose sum is σ = 823680. Its totient is φ = 471600.

The previous prime is 624607. The next prime is 624643. The reversal of 624625 is 526426.

It is an interprime number because it is at equal distance from previous prime (624607) and next prime (624643).

It is not a de Polignac number, because 624625 - 2⁵ = 624593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

624625 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 624625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2244 + ... + 2506.

It is an arithmetic number, because the mean of its divisors is an integer number (51480).

2⁶²⁴⁶²⁵ is an apocalyptic number.

It is an amenable number.

624625 is a deficient number, since it is larger than the sum of its proper divisors (199055).

624625 is a wasteful number, since it uses less digits than its factorization.

624625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 287 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 624625 is about 790.3322086313. The cubic root of 624625 is about 85.4816941533.

The spelling of 624625 in words is "six hundred twenty-four thousand, six hundred twenty-five".