5191907855 has 4 divisors (see below), whose sum is σ = 6230289432. Its totient is φ = 4153526280.

The previous prime is 5191907771. The next prime is 5191907879. The reversal of 5191907855 is 5587091915.

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

It is not a de Polignac number, because 5191907855 - 2²⁸ = 4923472399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 519190781 + ... + 519190790.

It is an arithmetic number, because the mean of its divisors is an integer number (1557572358).

Almost surely, 2^5191907855 is an apocalyptic number.

5191907855 is a deficient number, since it is larger than the sum of its proper divisors (1038381577).

5191907855 is a wasteful number, since it uses less digits than its factorization.

5191907855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038381576.

The product of its (nonzero) digits is 567000, while the sum is 50.

The square root of 5191907855 is about 72054.8947331130. The cubic root of 5191907855 is about 1731.5790604599.

The spelling of 5191907855 in words is "five billion, one hundred ninety-one million, nine hundred seven thousand, eight hundred fifty-five".