225370506 has 16 divisors (see below), whose sum is σ = 451080000. Its totient is φ = 75067008.

The previous prime is 225370493. The next prime is 225370511. The reversal of 225370506 is 605073522.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5031 + ... + 21818.

It is an arithmetic number, because the mean of its divisors is an integer number (28192500).

Almost surely, 2^225370506 is an apocalyptic number.

225370506 is an abundant number, since it is smaller than the sum of its proper divisors (225709494).

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

225370506 is a wasteful number, since it uses less digits than its factorization.

225370506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28253.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 225370506 is about 15012.3451199338. The cubic root of 225370506 is about 608.5538671908.

The spelling of 225370506 in words is "two hundred twenty-five million, three hundred seventy thousand, five hundred six".