2564577293 has 2 divisors, whose sum is σ = 2564577294. Its totient is φ = 2564577292.

The previous prime is 2564577247. The next prime is 2564577317. The reversal of 2564577293 is 3927754652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2381732809 + 182844484 = 48803^2 + 13522^2 .

It is a cyclic number.

It is not a de Polignac number, because 2564577293 - 2⁶ = 2564577229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564577893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282288646 + 1282288647.

It is an arithmetic number, because the mean of its divisors is an integer number (1282288647).

Almost surely, 2^2564577293 is an apocalyptic number.

It is an amenable number.

2564577293 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564577293 is an equidigital number, since it uses as much as digits as its factorization.

2564577293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3175200, while the sum is 50.

The square root of 2564577293 is about 50641.6557095046. The cubic root of 2564577293 is about 1368.7955907390.

The spelling of 2564577293 in words is "two billion, five hundred sixty-four million, five hundred seventy-seven thousand, two hundred ninety-three".