2564514813 has 24 divisors (see below), whose sum is σ = 3981454560. Its totient is φ = 1464022560.

The previous prime is 2564514803. The next prime is 2564514839. The reversal of 2564514813 is 3184154652.

It is not a de Polignac number, because 2564514813 - 2⁶ = 2564514749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564514803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155158 + ... + 170888.

It is an arithmetic number, because the mean of its divisors is an integer number (165893940).

Almost surely, 2^2564514813 is an apocalyptic number.

It is an amenable number.

2564514813 is a deficient number, since it is larger than the sum of its proper divisors (1416939747).

2564514813 is a wasteful number, since it uses less digits than its factorization.

2564514813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857 (or 16850 counting only the distinct ones).

The product of its digits is 115200, while the sum is 39.

The square root of 2564514813 is about 50641.0388222833. The cubic root of 2564514813 is about 1368.7844748015.

The spelling of 2564514813 in words is "two billion, five hundred sixty-four million, five hundred fourteen thousand, eight hundred thirteen".