55239783534 has 48 divisors (see below), whose sum is σ = 130144271712. Its totient is φ = 16831831104.

The previous prime is 55239783497. The next prime is 55239783541. The reversal of 55239783534 is 43538793255.

55239783534 is a `hidden beast` number, since 5 + 5 + 2 + 39 + 78 + 3 + 534 = 666.

55239783534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

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, 1121857 + ... + 1170060.

It is an arithmetic number, because the mean of its divisors is an integer number (2711338994).

Almost surely, 2^55239783534 is an apocalyptic number.

55239783534 is an abundant number, since it is smaller than the sum of its proper divisors (74904488178).

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

55239783534 is a wasteful number, since it uses less digits than its factorization.

55239783534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292041 (or 2292038 counting only the distinct ones).

The product of its digits is 13608000, while the sum is 54.

The spelling of 55239783534 in words is "fifty-five billion, two hundred thirty-nine million, seven hundred eighty-three thousand, five hundred thirty-four".