2556367790 has 16 divisors (see below), whose sum is σ = 4602236400. Its totient is φ = 1022375040.

The previous prime is 2556367771. The next prime is 2556367811. The reversal of 2556367790 is 977636552.

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 7 ways as a sum of consecutive naturals, for example, 53261 + ... + 89159.

It is an arithmetic number, because the mean of its divisors is an integer number (287639775).

Almost surely, 2^2556367790 is an apocalyptic number.

2556367790 is a deficient number, since it is larger than the sum of its proper divisors (2045868610).

2556367790 is a wasteful number, since it uses less digits than its factorization.

2556367790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43027.

The product of its (nonzero) digits is 2381400, while the sum is 50.

The square root of 2556367790 is about 50560.5358951030. The cubic root of 2556367790 is about 1367.3334728099. Note that the first 3 decimals are identical.

The spelling of 2556367790 in words is "two billion, five hundred fifty-six million, three hundred sixty-seven thousand, seven hundred ninety".