225753631 has 2 divisors, whose sum is σ = 225753632. Its totient is φ = 225753630.

The previous prime is 225753623. The next prime is 225753637. The reversal of 225753631 is 136357522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225753631 - 2³ = 225753623 is a prime.

It is a super-2 number, since 2×225753631² = 101929403819368322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225753637) 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 as a sum of consecutive naturals, namely, 112876815 + 112876816.

It is an arithmetic number, because the mean of its divisors is an integer number (112876816).

Almost surely, 2^225753631 is an apocalyptic number.

225753631 is a deficient number, since it is larger than the sum of its proper divisors (1).

225753631 is an equidigital number, since it uses as much as digits as its factorization.

225753631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 34.

The square root of 225753631 is about 15025.1000329449. The cubic root of 225753631 is about 608.8985147836.

The spelling of 225753631 in words is "two hundred twenty-five million, seven hundred fifty-three thousand, six hundred thirty-one".