2564383256 has 8 divisors (see below), whose sum is σ = 4808218620. Its totient is φ = 1282191624.

The previous prime is 2564383249. The next prime is 2564383267. The reversal of 2564383256 is 6523834652.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2564383256² = 13152122967306323072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160273946 + ... + 160273961.

Almost surely, 2^2564383256 is an apocalyptic number.

It is an amenable number.

2564383256 is a deficient number, since it is larger than the sum of its proper divisors (2243835364).

2564383256 is a wasteful number, since it uses less digits than its factorization.

2564383256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320547913 (or 320547909 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 44.

The square root of 2564383256 is about 50639.7398887475. The cubic root of 2564383256 is about 1368.7610686511.

The spelling of 2564383256 in words is "two billion, five hundred sixty-four million, three hundred eighty-three thousand, two hundred fifty-six".