2564516087 has 12 divisors (see below), whose sum is σ = 3052592136. Its totient is φ = 2147034960.

The previous prime is 2564516083. The next prime is 2564516107. The reversal of 2564516087 is 7806154652.

It is not a de Polignac number, because 2564516087 - 2² = 2564516083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564516083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606464 + ... + 610677.

It is an arithmetic number, because the mean of its divisors is an integer number (254382678).

Almost surely, 2^2564516087 is an apocalyptic number.

2564516087 is a deficient number, since it is larger than the sum of its proper divisors (488076049).

2564516087 is a wasteful number, since it uses less digits than its factorization.

2564516087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217198 (or 1217191 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 2564516087 is about 50641.0514010126. The cubic root of 2564516087 is about 1368.7847014631.

The spelling of 2564516087 in words is "two billion, five hundred sixty-four million, five hundred sixteen thousand, eighty-seven".