225331002 has 48 divisors (see below), whose sum is σ = 542750208. Its totient is φ = 67093920.

The previous prime is 225330997. The next prime is 225331003. The reversal of 225331002 is 200133522.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (225331003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8278 + ... + 22785.

It is an arithmetic number, because the mean of its divisors is an integer number (11307296).

Almost surely, 2^225331002 is an apocalyptic number.

225331002 is an abundant number, since it is smaller than the sum of its proper divisors (317419206).

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

225331002 is a wasteful number, since it uses less digits than its factorization.

225331002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31115 (or 31112 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 225331002 is about 15011.0293451182. The cubic root of 225331002 is about 608.5183083871.

Adding to 225331002 its reverse (200133522), we get a palindrome (425464524).

The spelling of 225331002 in words is "two hundred twenty-five million, three hundred thirty-one thousand, two".