225505412531 has 16 divisors (see below), whose sum is σ = 258361947648. Its totient is φ = 192809678400.

The previous prime is 225505412527. The next prime is 225505412543. The reversal of 225505412531 is 135214505522.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 225505412531 - 2² = 225505412527 is a prime.

It is a super-2 number, since 2×225505412531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225505412491 and 225505412500.

It is not an unprimeable number, because it can be changed into a prime (225505412521) 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 15 ways as a sum of consecutive naturals, for example, 6686471 + ... + 6720111.

It is an arithmetic number, because the mean of its divisors is an integer number (16147621728).

Almost surely, 2^225505412531 is an apocalyptic number.

225505412531 is a deficient number, since it is larger than the sum of its proper divisors (32856535117).

225505412531 is a wasteful number, since it uses less digits than its factorization.

225505412531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36002.

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 225505412531 in words is "two hundred twenty-five billion, five hundred five million, four hundred twelve thousand, five hundred thirty-one".