55400223055 has 4 divisors (see below), whose sum is σ = 66480267672. Its totient is φ = 44320178440.

The previous prime is 55400223041. The next prime is 55400223071. The reversal of 55400223055 is 55032200455.

It is a happy number.

55400223055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55400223055 - 2⁵ = 55400223023 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5540022301 + ... + 5540022310.

It is an arithmetic number, because the mean of its divisors is an integer number (16620066918).

Almost surely, 2^55400223055 is an apocalyptic number.

55400223055 is a deficient number, since it is larger than the sum of its proper divisors (11080044617).

55400223055 is a wasteful number, since it uses less digits than its factorization.

55400223055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11080044616.

The product of its (nonzero) digits is 30000, while the sum is 31.

The spelling of 55400223055 in words is "fifty-five billion, four hundred million, two hundred twenty-three thousand, fifty-five".