2556144051 has 4 divisors (see below), whose sum is σ = 3408192072. Its totient is φ = 1704096032.

The previous prime is 2556144047. The next prime is 2556144053. The reversal of 2556144051 is 1504416552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2556144051 - 2² = 2556144047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2556144053) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 426024006 + ... + 426024011.

It is an arithmetic number, because the mean of its divisors is an integer number (852048018).

Almost surely, 2^2556144051 is an apocalyptic number.

2556144051 is a deficient number, since it is larger than the sum of its proper divisors (852048021).

2556144051 is an equidigital number, since it uses as much as digits as its factorization.

2556144051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852048020.

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 2556144051 is about 50558.3232613583. The cubic root of 2556144051 is about 1367.2935809562.

The spelling of 2556144051 in words is "two billion, five hundred fifty-six million, one hundred forty-four thousand, fifty-one".