55552166055 has 24 divisors (see below), whose sum is σ = 96350465952. Its totient is φ = 29609346624.

The previous prime is 55552166053. The next prime is 55552166099. The reversal of 55552166055 is 55066125555.

It is not a de Polignac number, because 55552166055 - 2¹ = 55552166053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55552166055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55552166053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311784 + ... + 456413.

It is an arithmetic number, because the mean of its divisors is an integer number (4014602748).

Almost surely, 2^55552166055 is an apocalyptic number.

55552166055 is a deficient number, since it is larger than the sum of its proper divisors (40798299897).

55552166055 is a wasteful number, since it uses less digits than its factorization.

55552166055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769815 (or 769812 counting only the distinct ones).

The product of its (nonzero) digits is 1125000, while the sum is 45.

The spelling of 55552166055 in words is "fifty-five billion, five hundred fifty-two million, one hundred sixty-six thousand, fifty-five".