225731631051 has 6 divisors (see below), whose sum is σ = 326056800420. Its totient is φ = 150487754028.

The previous prime is 225731631019. The next prime is 225731631061. The reversal of 225731631051 is 150136137522.

225731631051 is a `hidden beast` number, since 2 + 2 + 573 + 1 + 6 + 31 + 0 + 51 = 666.

It is not a de Polignac number, because 225731631051 - 2⁵ = 225731631019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225731630997 and 225731631015.

It is not an unprimeable number, because it can be changed into a prime (225731631061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12540646161 + ... + 12540646178.

It is an arithmetic number, because the mean of its divisors is an integer number (54342800070).

Almost surely, 2^225731631051 is an apocalyptic number.

225731631051 is a deficient number, since it is larger than the sum of its proper divisors (100325169369).

225731631051 is a wasteful number, since it uses less digits than its factorization.

225731631051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25081292345 (or 25081292342 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

Adding to 225731631051 its reverse (150136137522), we get a palindrome (375867768573).

The spelling of 225731631051 in words is "two hundred twenty-five billion, seven hundred thirty-one million, six hundred thirty-one thousand, fifty-one".