53329362391 has 4 divisors (see below), whose sum is σ = 53928568800. Its totient is φ = 52730155984.

The previous prime is 53329362379. The next prime is 53329362397. The reversal of 53329362391 is 19326392335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19326392335 = 5 ⋅3865278467.

It is a cyclic number.

It is not a de Polignac number, because 53329362391 - 2⁷ = 53329362263 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 (53329362397) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 299603071 + ... + 299603248.

It is an arithmetic number, because the mean of its divisors is an integer number (13482142200).

Almost surely, 2^53329362391 is an apocalyptic number.

53329362391 is a deficient number, since it is larger than the sum of its proper divisors (599206409).

53329362391 is an equidigital number, since it uses as much as digits as its factorization.

53329362391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599206408.

The product of its digits is 787320, while the sum is 46.

The spelling of 53329362391 in words is "fifty-three billion, three hundred twenty-nine million, three hundred sixty-two thousand, three hundred ninety-one".