56554643311 has 2 divisors, whose sum is σ = 56554643312. Its totient is φ = 56554643310.

The previous prime is 56554643267. The next prime is 56554643329. The reversal of 56554643311 is 11334645565.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56554643311 - 2⁷ = 56554643183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56554643111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28277321655 + 28277321656.

It is an arithmetic number, because the mean of its divisors is an integer number (28277321656).

Almost surely, 2^56554643311 is an apocalyptic number.

56554643311 is a deficient number, since it is larger than the sum of its proper divisors (1).

56554643311 is an equidigital number, since it uses as much as digits as its factorization.

56554643311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648000, while the sum is 43.

The spelling of 56554643311 in words is "fifty-six billion, five hundred fifty-four million, six hundred forty-three thousand, three hundred eleven".