225296222538 has 16 divisors (see below), whose sum is σ = 461582505216. Its totient is φ = 73267064160.

The previous prime is 225296222533. The next prime is 225296222549. The reversal of 225296222538 is 835222692522.

It is a super-2 number, since 2×225296222538² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225296222533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457918906 + ... + 457919397.

It is an arithmetic number, because the mean of its divisors is an integer number (28848906576).

Almost surely, 2^225296222538 is an apocalyptic number.

225296222538 is an abundant number, since it is smaller than the sum of its proper divisors (236286282678).

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

225296222538 is a wasteful number, since it uses less digits than its factorization.

225296222538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915838349.

The product of its digits is 2073600, while the sum is 48.

The spelling of 225296222538 in words is "two hundred twenty-five billion, two hundred ninety-six million, two hundred twenty-two thousand, five hundred thirty-eight".