56554813877 has 4 divisors (see below), whose sum is σ = 56564605920. Its totient is φ = 56545021836.

The previous prime is 56554813867. The next prime is 56554813921. The reversal of 56554813877 is 77831845565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56554813877 - 2⁸ = 56554813621 is a prime.

It is a super-2 number, since 2×56554813877² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56554813837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4887353 + ... + 4898910.

It is an arithmetic number, because the mean of its divisors is an integer number (14141151480).

Almost surely, 2^56554813877 is an apocalyptic number.

It is an amenable number.

56554813877 is a deficient number, since it is larger than the sum of its proper divisors (9792043).

56554813877 is an equidigital number, since it uses as much as digits as its factorization.

56554813877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9792042.

The product of its digits is 28224000, while the sum is 59.

The spelling of 56554813877 in words is "fifty-six billion, five hundred fifty-four million, eight hundred thirteen thousand, eight hundred seventy-seven".