55357491727 has 4 divisors (see below), whose sum is σ = 55928187616. Its totient is φ = 54786795840.

The previous prime is 55357491703. The next prime is 55357491737. The reversal of 55357491727 is 72719475355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55357491727 - 2⁷ = 55357491599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55357491737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285347799 + ... + 285347992.

It is an arithmetic number, because the mean of its divisors is an integer number (13982046904).

Almost surely, 2^55357491727 is an apocalyptic number.

55357491727 is a deficient number, since it is larger than the sum of its proper divisors (570695889).

55357491727 is an equidigital number, since it uses as much as digits as its factorization.

55357491727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570695888.

The product of its digits is 9261000, while the sum is 55.

The spelling of 55357491727 in words is "fifty-five billion, three hundred fifty-seven million, four hundred ninety-one thousand, seven hundred twenty-seven".