624255 has 8 divisors (see below), whose sum is σ = 998832. Its totient is φ = 332928.

The previous prime is 624251. The next prime is 624259. The reversal of 624255 is 552426.

It is an interprime number because it is at equal distance from previous prime (624251) and next prime (624259).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 624255 - 2² = 624251 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 624255.

It is not an unprimeable number, because it can be changed into a prime (624251) 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, 20794 + ... + 20823.

It is an arithmetic number, because the mean of its divisors is an integer number (124854).

2⁶²⁴²⁵⁵ is an apocalyptic number.

624255 is a deficient number, since it is larger than the sum of its proper divisors (374577).

624255 is a wasteful number, since it uses less digits than its factorization.

624255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41625.

The product of its digits is 2400, while the sum is 24.

The square root of 624255 is about 790.0980951755. The cubic root of 624255 is about 85.4648123047.

It can be divided in two parts, 6 and 24255, that multiplied together give a triangular number (145530 = T₅₃₉).

The spelling of 624255 in words is "six hundred twenty-four thousand, two hundred fifty-five".