225723210 has 16 divisors (see below), whose sum is σ = 541735776. Its totient is φ = 60192848.

The previous prime is 225723193. The next prime is 225723257. The reversal of 225723210 is 12327522.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 3762024 + ... + 3762083.

It is an arithmetic number, because the mean of its divisors is an integer number (33858486).

Almost surely, 2^225723210 is an apocalyptic number.

225723210 is an abundant number, since it is smaller than the sum of its proper divisors (316012566).

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

225723210 is a wasteful number, since it uses less digits than its factorization.

225723210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524117.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 225723210 is about 15024.0876594887. The cubic root of 225723210 is about 608.8711632356.

The spelling of 225723210 in words is "two hundred twenty-five million, seven hundred twenty-three thousand, two hundred ten".