225321002 has 4 divisors (see below), whose sum is σ = 337981506. Its totient is φ = 112660500.

The previous prime is 225320993. The next prime is 225321037. The reversal of 225321002 is 200123522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200123522 = 2 ⋅100061761.

It can be written as a sum of positive squares in only one way, i.e., 215766721 + 9554281 = 14689^2 + 3091^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56330249 + ... + 56330252.

Almost surely, 2^225321002 is an apocalyptic number.

225321002 is a deficient number, since it is larger than the sum of its proper divisors (112660504).

225321002 is a wasteful number, since it uses less digits than its factorization.

225321002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112660503.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 225321002 is about 15010.6962530057. The cubic root of 225321002 is about 608.5093064107.

Adding to 225321002 its reverse (200123522), we get a palindrome (425444524).

The spelling of 225321002 in words is "two hundred twenty-five million, three hundred twenty-one thousand, two".