55391441144 has 32 divisors (see below), whose sum is σ = 116711068320. Its totient is φ = 24453745536.

The previous prime is 55391441137. The next prime is 55391441159. The reversal of 55391441144 is 44114419355.

55391441144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11576087 + ... + 11580870.

It is an arithmetic number, because the mean of its divisors is an integer number (3647220885).

Almost surely, 2^55391441144 is an apocalyptic number.

It is an amenable number.

55391441144 is an abundant number, since it is smaller than the sum of its proper divisors (61319627176).

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

55391441144 is a wasteful number, since it uses less digits than its factorization.

55391441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23156999 (or 23156995 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The spelling of 55391441144 in words is "fifty-five billion, three hundred ninety-one million, four hundred forty-one thousand, one hundred forty-four".