55518428286 has 48 divisors (see below), whose sum is σ = 122206451328. Its totient is φ = 18211842000.

The previous prime is 55518428233. The next prime is 55518428291. The reversal of 55518428286 is 68282481555.

55518428286 is a `hidden beast` number, since 5 + 5 + 518 + 42 + 8 + 2 + 86 = 666.

It is a congruent number.

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, 1221061 + ... + 1265711.

It is an arithmetic number, because the mean of its divisors is an integer number (2545967736).

Almost surely, 2^55518428286 is an apocalyptic number.

55518428286 is an abundant number, since it is smaller than the sum of its proper divisors (66688023042).

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

55518428286 is a wasteful number, since it uses less digits than its factorization.

55518428286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45757 (or 45754 counting only the distinct ones).

The product of its digits is 6144000, while the sum is 54.

The spelling of 55518428286 in words is "fifty-five billion, five hundred eighteen million, four hundred twenty-eight thousand, two hundred eighty-six".