56554266551 has 2 divisors, whose sum is σ = 56554266552. Its totient is φ = 56554266550.

The previous prime is 56554266539. The next prime is 56554266563. The reversal of 56554266551 is 15566245565.

It is a balanced prime because it is at equal distance from previous prime (56554266539) and next prime (56554266563).

It is a cyclic number.

It is not a de Polignac number, because 56554266551 - 2³⁰ = 55480524727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56554266551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56554266511) 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 as a sum of consecutive naturals, namely, 28277133275 + 28277133276.

It is an arithmetic number, because the mean of its divisors is an integer number (28277133276).

Almost surely, 2^56554266551 is an apocalyptic number.

56554266551 is a deficient number, since it is larger than the sum of its proper divisors (1).

56554266551 is an equidigital number, since it uses as much as digits as its factorization.

56554266551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400000, while the sum is 50.

The spelling of 56554266551 in words is "fifty-six billion, five hundred fifty-four million, two hundred sixty-six thousand, five hundred fifty-one".