55442135727405 has 48 divisors (see below), whose sum is σ = 110915639063424. Its totient is φ = 25094035958400.

The previous prime is 55442135727389. The next prime is 55442135727413. The reversal of 55442135727405 is 50472753124455.

55442135727405 is a `hidden beast` number, since 5 + 5 + 4 + 4 + 21 + 3 + 572 + 7 + 40 + 5 = 666.

55442135727405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55442135727405 - 2⁴ = 55442135727389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 871288879 + ... + 871352508.

It is an arithmetic number, because the mean of its divisors is an integer number (2310742480488).

Almost surely, 2^{55442135727405} is an apocalyptic number.

It is an amenable number.

55442135727405 is an abundant number, since it is smaller than the sum of its proper divisors (55473503336019).

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

55442135727405 is a wasteful number, since it uses less digits than its factorization.

55442135727405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742641506 (or 1742641503 counting only the distinct ones).

The product of its (nonzero) digits is 23520000, while the sum is 54.

The spelling of 55442135727405 in words is "fifty-five trillion, four hundred forty-two billion, one hundred thirty-five million, seven hundred twenty-seven thousand, four hundred five".