225028931591 has 2 divisors, whose sum is σ = 225028931592. Its totient is φ = 225028931590.

The previous prime is 225028931587. The next prime is 225028931597. The reversal of 225028931591 is 195139820522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225028931591 - 2² = 225028931587 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225028931597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112514465795 + 112514465796.

It is an arithmetic number, because the mean of its divisors is an integer number (112514465796).

Almost surely, 2^225028931591 is an apocalyptic number.

225028931591 is a deficient number, since it is larger than the sum of its proper divisors (1).

225028931591 is an equidigital number, since it uses as much as digits as its factorization.

225028931591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 225028931591 in words is "two hundred twenty-five billion, twenty-eight million, nine hundred thirty-one thousand, five hundred ninety-one".