55564846555 has 16 divisors (see below), whose sum is σ = 69154956288. Its totient is φ = 42814044000.

The previous prime is 55564846553. The next prime is 55564846559.

55564846555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55564846555 - 2¹ = 55564846553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55564846555.

It is not an unprimeable number, because it can be changed into a prime (55564846553) 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 15 ways as a sum of consecutive naturals, for example, 816781 + ... + 882190.

It is an arithmetic number, because the mean of its divisors is an integer number (4322184768).

Almost surely, 2^55564846555 is an apocalyptic number.

55564846555 is a deficient number, since it is larger than the sum of its proper divisors (13590109733).

55564846555 is a wasteful number, since it uses less digits than its factorization.

55564846555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1699218.

The product of its digits is 72000000, while the sum is 58.

The spelling of 55564846555 in words is "fifty-five billion, five hundred sixty-four million, eight hundred forty-six thousand, five hundred fifty-five".