2556072355 has 4 divisors (see below), whose sum is σ = 3067286832. Its totient is φ = 2044857880.

The previous prime is 2556072353. The next prime is 2556072361. The reversal of 2556072355 is 5532706552.

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

It is not a de Polignac number, because 2556072355 - 2¹ = 2556072353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556072353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255607231 + ... + 255607240.

It is an arithmetic number, because the mean of its divisors is an integer number (766821708).

Almost surely, 2^2556072355 is an apocalyptic number.

2556072355 is a deficient number, since it is larger than the sum of its proper divisors (511214477).

2556072355 is an equidigital number, since it uses as much as digits as its factorization.

2556072355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511214476.

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 2556072355 is about 50557.6142138847. The cubic root of 2556072355 is about 1367.2807973265.

The spelling of 2556072355 in words is "two billion, five hundred fifty-six million, seventy-two thousand, three hundred fifty-five".