225302215 has 16 divisors (see below), whose sum is σ = 273857760. Its totient is φ = 177923200.

The previous prime is 225302201. The next prime is 225302239. The reversal of 225302215 is 512203522.

It is not a de Polignac number, because 225302215 - 2⁵ = 225302183 is a prime.

It is a super-2 number, since 2×225302215² = 101522176167812450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332457 + ... + 333133.

It is an arithmetic number, because the mean of its divisors is an integer number (17116110).

Almost surely, 2^225302215 is an apocalyptic number.

225302215 is a deficient number, since it is larger than the sum of its proper divisors (48555545).

225302215 is a wasteful number, since it uses less digits than its factorization.

225302215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 225302215 is about 15010.0704528660. The cubic root of 225302215 is about 608.4923936773.

Adding to 225302215 its reverse (512203522), we get a palindrome (737505737).

The spelling of 225302215 in words is "two hundred twenty-five million, three hundred two thousand, two hundred fifteen".