55117273146 has 32 divisors (see below), whose sum is σ = 125697313728. Its totient is φ = 15961562880.

The previous prime is 55117273063. The next prime is 55117273153. The reversal of 55117273146 is 64137271155.

It is a junction number, because it is equal to n+sod(n) for n = 55117273098 and 55117273107.

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, 20781960 + ... + 20784611.

It is an arithmetic number, because the mean of its divisors is an integer number (3928041054).

Almost surely, 2^55117273146 is an apocalyptic number.

55117273146 is an abundant number, since it is smaller than the sum of its proper divisors (70580040582).

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

55117273146 is a wasteful number, since it uses less digits than its factorization.

55117273146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41566606.

The product of its digits is 176400, while the sum is 42.

The spelling of 55117273146 in words is "fifty-five billion, one hundred seventeen million, two hundred seventy-three thousand, one hundred forty-six".