2565222431 has 2 divisors, whose sum is σ = 2565222432. Its totient is φ = 2565222430.

The previous prime is 2565222427. The next prime is 2565222437. The reversal of 2565222431 is 1342225652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2565222431 - 2² = 2565222427 is a prime.

It is a super-2 number, since 2×2565222431² = 13160732241011099522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2565222437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282611215 + 1282611216.

It is an arithmetic number, because the mean of its divisors is an integer number (1282611216).

Almost surely, 2^2565222431 is an apocalyptic number.

2565222431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2565222431 is an equidigital number, since it uses as much as digits as its factorization.

2565222431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 32.

The square root of 2565222431 is about 50648.0249466847. The cubic root of 2565222431 is about 1368.9103579323.

The spelling of 2565222431 in words is "two billion, five hundred sixty-five million, two hundred twenty-two thousand, four hundred thirty-one".