225716125572531 has 48 divisors (see below), whose sum is σ = 364835225589120. Its totient is φ = 133289619845760.

The previous prime is 225716125572523. The next prime is 225716125572533. The reversal of 225716125572531 is 135275521617522.

It is a happy number.

225716125572531 is a `hidden beast` number, since 2 + 2 + 5 + 7 + 1 + 6 + 12 + 5 + 572 + 53 + 1 = 666.

It is not a de Polignac number, because 225716125572531 - 2³ = 225716125572523 is a prime.

It is a super-2 number, since 2×225716125572531² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225716125572533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63078381 + ... + 66560606.

It is an arithmetic number, because the mean of its divisors is an integer number (7600733866440).

Almost surely, 2^{225716125572531} is an apocalyptic number.

225716125572531 is a deficient number, since it is larger than the sum of its proper divisors (139119100016589).

225716125572531 is a wasteful number, since it uses less digits than its factorization.

225716125572531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129639456 (or 129639453 counting only the distinct ones).

The product of its digits is 8820000, while the sum is 54.

The spelling of 225716125572531 in words is "two hundred twenty-five trillion, seven hundred sixteen billion, one hundred twenty-five million, five hundred seventy-two thousand, five hundred thirty-one".