2564957 has 2 divisors, whose sum is σ = 2564958. Its totient is φ = 2564956.

The previous prime is 2564921. The next prime is 2564999. The reversal of 2564957 is 7594652.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1692601 + 872356 = 1301^2 + 934^2 .

It is a cyclic number.

It is not a de Polignac number, because 2564957 - 2⁸ = 2564701 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2564957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282478 + 1282479.

It is an arithmetic number, because the mean of its divisors is an integer number (1282479).

2^2564957 is an apocalyptic number.

It is an amenable number.

2564957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564957 is an equidigital number, since it uses as much as digits as its factorization.

2564957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 2564957 is about 1601.5483133518. The cubic root of 2564957 is about 136.8863141263.

The spelling of 2564957 in words is "two million, five hundred sixty-four thousand, nine hundred fifty-seven".