225637969931 has 12 divisors (see below), whose sum is σ = 248026836456. Its totient is φ = 205115877120.

The previous prime is 225637969901. The next prime is 225637969933. The reversal of 225637969931 is 139969736522.

It is not a de Polignac number, because 225637969931 - 2⁶ = 225637969867 is a prime.

It is a super-3 number, since 3×225637969931³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (62) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225637969933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4692296 + ... + 4740138.

It is an arithmetic number, because the mean of its divisors is an integer number (20668903038).

Almost surely, 2^225637969931 is an apocalyptic number.

225637969931 is a deficient number, since it is larger than the sum of its proper divisors (22388866525).

225637969931 is a wasteful number, since it uses less digits than its factorization.

225637969931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86842 (or 86831 counting only the distinct ones).

The product of its digits is 33067440, while the sum is 62.

The spelling of 225637969931 in words is "two hundred twenty-five billion, six hundred thirty-seven million, nine hundred sixty-nine thousand, nine hundred thirty-one".