55073274138 has 64 divisors (see below), whose sum is σ = 122996457600. Its totient is φ = 18266290560.

The previous prime is 55073274127. The next prime is 55073274143. The reversal of 55073274138 is 83147237055.

55073274138 is a `hidden beast` number, since 5 + 507 + 3 + 2 + 7 + 4 + 138 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 55073274093 and 55073274102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9295245 + ... + 9301167.

It is an arithmetic number, because the mean of its divisors is an integer number (1921819650).

Almost surely, 2^55073274138 is an apocalyptic number.

55073274138 is an abundant number, since it is smaller than the sum of its proper divisors (67923183462).

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

55073274138 is a wasteful number, since it uses less digits than its factorization.

55073274138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764 (or 6758 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 55073274138 in words is "fifty-five billion, seventy-three million, two hundred seventy-four thousand, one hundred thirty-eight".