5285518691 has 2 divisors, whose sum is σ = 5285518692. Its totient is φ = 5285518690.

The previous prime is 5285518687. The next prime is 5285518723. The reversal of 5285518691 is 1968155825.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5285518691 - 2² = 5285518687 is a prime.

It is not a weakly prime, because it can be changed into another prime (5285518661) 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 as a sum of consecutive naturals, namely, 2642759345 + 2642759346.

It is an arithmetic number, because the mean of its divisors is an integer number (2642759346).

Almost surely, 2^5285518691 is an apocalyptic number.

5285518691 is a deficient number, since it is larger than the sum of its proper divisors (1).

5285518691 is an equidigital number, since it uses as much as digits as its factorization.

5285518691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864000, while the sum is 50.

The square root of 5285518691 is about 72701.5728234266. The cubic root of 5285518691 is about 1741.9240058670.

The spelling of 5285518691 in words is "five billion, two hundred eighty-five million, five hundred eighteen thousand, six hundred ninety-one".