2556037155 has 16 divisors (see below), whose sum is σ = 4673896704. Its totient is φ = 1168474080.

The previous prime is 2556037151. The next prime is 2556037157. The reversal of 2556037155 is 5517306552.

It is not a de Polignac number, because 2556037155 - 2² = 2556037151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2556037151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12171501 + ... + 12171710.

It is an arithmetic number, because the mean of its divisors is an integer number (292118544).

Almost surely, 2^2556037155 is an apocalyptic number.

2556037155 is a deficient number, since it is larger than the sum of its proper divisors (2117859549).

2556037155 is a wasteful number, since it uses less digits than its factorization.

2556037155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24343226.

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 2556037155 is about 50557.2660949937. The cubic root of 2556037155 is about 1367.2745209647.

The spelling of 2556037155 in words is "two billion, five hundred fifty-six million, thirty-seven thousand, one hundred fifty-five".