5285181091 has 4 divisors (see below), whose sum is σ = 5339667592. Its totient is φ = 5230694592.

The previous prime is 5285181043. The next prime is 5285181107. The reversal of 5285181091 is 1901815825.

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 5285181091 - 2⁷ = 5285180963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5285181791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27243105 + ... + 27243298.

It is an arithmetic number, because the mean of its divisors is an integer number (1334916898).

Almost surely, 2^5285181091 is an apocalyptic number.

5285181091 is a deficient number, since it is larger than the sum of its proper divisors (54486501).

5285181091 is an equidigital number, since it uses as much as digits as its factorization.

5285181091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54486500.

The product of its (nonzero) digits is 28800, while the sum is 40.

The square root of 5285181091 is about 72699.2509658800. The cubic root of 5285181091 is about 1741.8869179860.

The spelling of 5285181091 in words is "five billion, two hundred eighty-five million, one hundred eighty-one thousand, ninety-one".