623604225 has 48 divisors (see below), whose sum is σ = 1108500480. Its totient is φ = 308347200.

The previous prime is 623604209. The next prime is 623604257. The reversal of 623604225 is 522406326.

623604225 is nontrivially palindromic in base 11.

It is not a de Polignac number, because 623604225 - 2⁴ = 623604209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 623604192 and 623604201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62320 + ... + 71630.

It is an arithmetic number, because the mean of its divisors is an integer number (23093760).

Almost surely, 2^623604225 is an apocalyptic number.

It is an amenable number.

623604225 is a deficient number, since it is larger than the sum of its proper divisors (484896255).

623604225 is a wasteful number, since it uses less digits than its factorization.

623604225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9390 (or 9385 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 623604225 is about 24972.0688970698. The cubic root of 623604225 is about 854.3510345098.

The spelling of 623604225 in words is "six hundred twenty-three million, six hundred four thousand, two hundred twenty-five".