625387924 has 48 divisors (see below), whose sum is σ = 1322689536. Its totient is φ = 253036800.

The previous prime is 625387913. The next prime is 625387933. The reversal of 625387924 is 429783526.

It is a super-2 number, since 2×625387924² = 782220110970059552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26802 + ... + 44374.

It is an arithmetic number, because the mean of its divisors is an integer number (27556032).

Almost surely, 2^625387924 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625387924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (661344768).

625387924 is an abundant number, since it is smaller than the sum of its proper divisors (697301612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625387924 is a wasteful number, since it uses less digits than its factorization.

625387924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17656 (or 17654 counting only the distinct ones).

The product of its digits is 725760, while the sum is 46.

The square root of 625387924 is about 25007.7572764932. The cubic root of 625387924 is about 855.1648276093.

The spelling of 625387924 in words is "six hundred twenty-five million, three hundred eighty-seven thousand, nine hundred twenty-four".