225596531 has 2 divisors, whose sum is σ = 225596532. Its totient is φ = 225596530.

The previous prime is 225596513. The next prime is 225596543. The reversal of 225596531 is 135695522.

Together with previous prime (225596513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225596531 - 2¹⁸ = 225334387 is a prime.

It is a super-2 number, since 2×225596531² = 101787589598467922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225596561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112798265 + 112798266.

It is an arithmetic number, because the mean of its divisors is an integer number (112798266).

Almost surely, 2^225596531 is an apocalyptic number.

225596531 is a deficient number, since it is larger than the sum of its proper divisors (1).

225596531 is an equidigital number, since it uses as much as digits as its factorization.

225596531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 38.

The square root of 225596531 is about 15019.8712045077. The cubic root of 225596531 is about 608.7572396037.

The spelling of 225596531 in words is "two hundred twenty-five million, five hundred ninety-six thousand, five hundred thirty-one".