56554812555 has 32 divisors (see below), whose sum is σ = 93757720320. Its totient is φ = 29091853440.

The previous prime is 56554812553. The next prime is 56554812607. The reversal of 56554812555 is 55521845565.

It is not a de Polignac number, because 56554812555 - 2¹ = 56554812553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56554812498 and 56554812507.

It is not an unprimeable number, because it can be changed into a prime (56554812551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555961 + ... + 649770.

It is an arithmetic number, because the mean of its divisors is an integer number (2929928760).

Almost surely, 2^56554812555 is an apocalyptic number.

56554812555 is a deficient number, since it is larger than the sum of its proper divisors (37202907765).

56554812555 is a wasteful number, since it uses less digits than its factorization.

56554812555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205851.

The product of its digits is 6000000, while the sum is 51.

The spelling of 56554812555 in words is "fifty-six billion, five hundred fifty-four million, eight hundred twelve thousand, five hundred fifty-five".