2564652499 has 8 divisors (see below), whose sum is σ = 2603080800. Its totient is φ = 2526480000.

The previous prime is 2564652469. The next prime is 2564652511. The reversal of 2564652499 is 9942564652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2564652499 - 2²³ = 2556263891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564652469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43702 + ... + 83899.

It is an arithmetic number, because the mean of its divisors is an integer number (325385100).

Almost surely, 2^2564652499 is an apocalyptic number.

2564652499 is a deficient number, since it is larger than the sum of its proper divisors (38428301).

2564652499 is a wasteful number, since it uses less digits than its factorization.

2564652499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127901.

The product of its digits is 4665600, while the sum is 52.

The square root of 2564652499 is about 50642.3982350757. The cubic root of 2564652499 is about 1368.8089705444.

The spelling of 2564652499 in words is "two billion, five hundred sixty-four million, six hundred fifty-two thousand, four hundred ninety-nine".