55918423542 has 16 divisors (see below), whose sum is σ = 111848693040. Its totient is φ = 18637500192.

The previous prime is 55918423513. The next prime is 55918423543. The reversal of 55918423542 is 24532481955.

It is a junction number, because it is equal to n+sod(n) for n = 55918423491 and 55918423500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55918423543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431617 + ... + 546012.

It is an arithmetic number, because the mean of its divisors is an integer number (6990543315).

Almost surely, 2^55918423542 is an apocalyptic number.

55918423542 is an abundant number, since it is smaller than the sum of its proper divisors (55930269498).

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

55918423542 is a wasteful number, since it uses less digits than its factorization.

55918423542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987167.

The product of its digits is 1728000, while the sum is 48.

The spelling of 55918423542 in words is "fifty-five billion, nine hundred eighteen million, four hundred twenty-three thousand, five hundred forty-two".