621326625 has 32 divisors (see below), whose sum is σ = 1094715648. Its totient is φ = 311878400.

The previous prime is 621326617. The next prime is 621326639. The reversal of 621326625 is 526623126.

It is not a de Polignac number, because 621326625 - 2³ = 621326617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42357 + ... + 55106.

It is an arithmetic number, because the mean of its divisors is an integer number (34209864).

Almost surely, 2^621326625 is an apocalyptic number.

It is an amenable number.

621326625 is a deficient number, since it is larger than the sum of its proper divisors (473389023).

621326625 is a wasteful number, since it uses less digits than its factorization.

621326625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97498 (or 97488 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 621326625 is about 24926.4242321276. The cubic root of 621326625 is about 853.3096455250.

The spelling of 621326625 in words is "six hundred twenty-one million, three hundred twenty-six thousand, six hundred twenty-five".