55244389551942 has 32 divisors (see below), whose sum is σ = 113457784987008. Its totient is φ = 17922988714176.

The previous prime is 55244389551823. The next prime is 55244389551971. The reversal of 55244389551942 is 24915598344255.

It is a happy number.

It is a congruent number.

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, 378240663 + ... + 378386690.

It is an arithmetic number, because the mean of its divisors is an integer number (3545555780844).

Almost surely, 2^{55244389551942} is an apocalyptic number.

55244389551942 is an abundant number, since it is smaller than the sum of its proper divisors (58213395435066).

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

55244389551942 is a wasteful number, since it uses less digits than its factorization.

55244389551942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756627684.

The product of its digits is 311040000, while the sum is 66.

The spelling of 55244389551942 in words is "fifty-five trillion, two hundred forty-four billion, three hundred eighty-nine million, five hundred fifty-one thousand, nine hundred forty-two".