55715271444 has 144 divisors (see below), whose sum is σ = 168334588800. Its totient is φ = 15889813632.

The previous prime is 55715271431. The next prime is 55715271497. The reversal of 55715271444 is 44417251755.

55715271444 is a `hidden beast` number, since 5 + 5 + 71 + 527 + 14 + 44 = 666.

55715271444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55715271444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3001897 + ... + 3020399.

It is an arithmetic number, because the mean of its divisors is an integer number (1168990200).

Almost surely, 2^55715271444 is an apocalyptic number.

55715271444 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55715271444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84167294400).

55715271444 is an abundant number, since it is smaller than the sum of its proper divisors (112619317356).

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

55715271444 is a wasteful number, since it uses less digits than its factorization.

55715271444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19099 (or 19084 counting only the distinct ones).

The product of its digits is 784000, while the sum is 45.

The spelling of 55715271444 in words is "fifty-five billion, seven hundred fifteen million, two hundred seventy-one thousand, four hundred forty-four".