55527872555 has 16 divisors (see below), whose sum is σ = 68267816064. Its totient is φ = 43333009920.

The previous prime is 55527872551. The next prime is 55527872557.

It is a happy number.

55527872555 is nontrivially palindromic in base 10.

55527872555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55527872555 - 2² = 55527872551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55527872555.

It is not an unprimeable number, because it can be changed into a prime (55527872551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2130734 + ... + 2156636.

It is an arithmetic number, because the mean of its divisors is an integer number (4266738504).

Almost surely, 2^55527872555 is an apocalyptic number.

55527872555 is a deficient number, since it is larger than the sum of its proper divisors (12739943509).

55527872555 is a wasteful number, since it uses less digits than its factorization.

55527872555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36406.

The product of its digits is 24500000, while the sum is 56.

The spelling of 55527872555 in words is "fifty-five billion, five hundred twenty-seven million, eight hundred seventy-two thousand, five hundred fifty-five".