55123522146 has 48 divisors (see below), whose sum is σ = 148905102528. Its totient is φ = 14317797600.

The previous prime is 55123522127. The next prime is 55123522177. The reversal of 55123522146 is 64122532155.

55123522146 is a `hidden beast` number, since 5 + 5 + 123 + 522 + 1 + 4 + 6 = 666.

55123522146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55123522146.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19884445 + ... + 19887216.

It is an arithmetic number, because the mean of its divisors is an integer number (3102189636).

Almost surely, 2^55123522146 is an apocalyptic number.

55123522146 is an abundant number, since it is smaller than the sum of its proper divisors (93781580382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55123522146 is a wasteful number, since it uses less digits than its factorization.

55123522146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39771687 (or 39771684 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 55123522146 in words is "fifty-five billion, one hundred twenty-three million, five hundred twenty-two thousand, one hundred forty-six".