55545854555 has 16 divisors (see below), whose sum is σ = 69563702880. Its totient is φ = 42524686848.

The previous prime is 55545854531. The next prime is 55545854561.

55545854555 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-55545854555 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55545854555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678637 + ... + 1711406.

It is an arithmetic number, because the mean of its divisors is an integer number (4347731430).

Almost surely, 2^55545854555 is an apocalyptic number.

55545854555 is a deficient number, since it is larger than the sum of its proper divisors (14017848325).

55545854555 is a wasteful number, since it uses less digits than its factorization.

55545854555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390190.

The product of its digits is 50000000, while the sum is 56.

The spelling of 55545854555 in words is "fifty-five billion, five hundred forty-five million, eight hundred fifty-four thousand, five hundred fifty-five".