2568431 has 2 divisors, whose sum is σ = 2568432. Its totient is φ = 2568430.

The previous prime is 2568427. The next prime is 2568457. The reversal of 2568431 is 1348652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2568431 - 2² = 2568427 is a prime.

It is a super-2 number, since 2×2568431² = 13193675603522, which contains 22 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2568394 and 2568403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2568481) 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, 1284215 + 1284216.

It is an arithmetic number, because the mean of its divisors is an integer number (1284216).

2^2568431 is an apocalyptic number.

2568431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2568431 is an equidigital number, since it uses as much as digits as its factorization.

2568431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 29.

The square root of 2568431 is about 1602.6325218215. The cubic root of 2568431 is about 136.9480862500.

The spelling of 2568431 in words is "two million, five hundred sixty-eight thousand, four hundred thirty-one".