2564512854 has 32 divisors (see below), whose sum is σ = 5294298240. Its totient is φ = 827611200.

The previous prime is 2564512843. The next prime is 2564512871. The reversal of 2564512854 is 4582154652.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7564 + ... + 72015.

It is an arithmetic number, because the mean of its divisors is an integer number (165446820).

Almost surely, 2^2564512854 is an apocalyptic number.

2564512854 is an abundant number, since it is smaller than the sum of its proper divisors (2729785386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2564512854 is a wasteful number, since it uses less digits than its factorization.

2564512854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79756.

The product of its digits is 384000, while the sum is 42.

The square root of 2564512854 is about 50641.0194802593. The cubic root of 2564512854 is about 1368.7841262691.

The spelling of 2564512854 in words is "two billion, five hundred sixty-four million, five hundred twelve thousand, eight hundred fifty-four".