625083021 has 16 divisors (see below), whose sum is σ = 926440000. Its totient is φ = 416546064.

The previous prime is 625082989. The next prime is 625083031. The reversal of 625083021 is 120380526.

625083021 is a `hidden beast` number, since 625 + 0 + 8 + 30 + 2 + 1 = 666.

It is not a de Polignac number, because 625083021 - 2⁵ = 625082989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625083031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105855 + ... + 111603.

It is an arithmetic number, because the mean of its divisors is an integer number (57902500).

Almost surely, 2^625083021 is an apocalyptic number.

It is an amenable number.

625083021 is a deficient number, since it is larger than the sum of its proper divisors (301356979).

625083021 is a wasteful number, since it uses less digits than its factorization.

625083021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9785 (or 9779 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 625083021 is about 25001.6603648638. The cubic root of 625083021 is about 855.0258287057.

The spelling of 625083021 in words is "six hundred twenty-five million, eighty-three thousand, twenty-one".