225081924 has 12 divisors (see below), whose sum is σ = 525191184. Its totient is φ = 75027304.

The previous prime is 225081911. The next prime is 225081931. The reversal of 225081924 is 429180522.

225081924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9378402 + ... + 9378425.

It is an arithmetic number, because the mean of its divisors is an integer number (43765932).

Almost surely, 2^225081924 is an apocalyptic number.

It is an amenable number.

225081924 is an abundant number, since it is smaller than the sum of its proper divisors (300109260).

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

225081924 is a wasteful number, since it uses less digits than its factorization.

225081924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18756834 (or 18756832 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 225081924 is about 15002.7305514696. The cubic root of 225081924 is about 608.2940096096.

The spelling of 225081924 in words is "two hundred twenty-five million, eighty-one thousand, nine hundred twenty-four".