225492931 has 4 divisors (see below), whose sum is σ = 237361000. Its totient is φ = 213624864.

The previous prime is 225492857. The next prime is 225492937. The reversal of 225492931 is 139294522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 225492931 - 2¹⁵ = 225460163 is a prime.

It is a super-2 number, since 2×225492931² = 101694123861941522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225492937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5934006 + ... + 5934043.

It is an arithmetic number, because the mean of its divisors is an integer number (59340250).

Almost surely, 2^225492931 is an apocalyptic number.

225492931 is a deficient number, since it is larger than the sum of its proper divisors (11868069).

225492931 is a wasteful number, since it uses less digits than its factorization.

225492931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868068.

The product of its digits is 38880, while the sum is 37.

The square root of 225492931 is about 15016.4220438825. The cubic root of 225492931 is about 608.6640394316.

The spelling of 225492931 in words is "two hundred twenty-five million, four hundred ninety-two thousand, nine hundred thirty-one".