2556554611 has 4 divisors (see below), whose sum is σ = 2753212672. Its totient is φ = 2359896552.

The previous prime is 2556554569. The next prime is 2556554617. The reversal of 2556554611 is 1164556552.

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

It is not a de Polignac number, because 2556554611 - 2¹⁵ = 2556521843 is a prime.

It is a super-2 number, since 2×2556554611² = 13071942958050722642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2556554617) 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, 98329011 + ... + 98329036.

It is an arithmetic number, because the mean of its divisors is an integer number (688303168).

Almost surely, 2^2556554611 is an apocalyptic number.

2556554611 is a deficient number, since it is larger than the sum of its proper divisors (196658061).

2556554611 is a wasteful number, since it uses less digits than its factorization.

2556554611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196658060.

The product of its digits is 180000, while the sum is 40.

The square root of 2556554611 is about 50562.3833595688. The cubic root of 2556554611 is about 1367.3667805346.

The spelling of 2556554611 in words is "two billion, five hundred fifty-six million, five hundred fifty-four thousand, six hundred eleven".