2505320591 has 2 divisors, whose sum is σ = 2505320592. Its totient is φ = 2505320590.

The previous prime is 2505320537. The next prime is 2505320593. The reversal of 2505320591 is 1950235052.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2505320591 - 2³⁰ = 1431578767 is a prime.

Together with 2505320593, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505320593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252660295 + 1252660296.

It is an arithmetic number, because the mean of its divisors is an integer number (1252660296).

Almost surely, 2^2505320591 is an apocalyptic number.

2505320591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505320591 is an equidigital number, since it uses as much as digits as its factorization.

2505320591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 2505320591 is about 50053.1776313952. The cubic root of 2505320591 is about 1358.1709464635.

The spelling of 2505320591 in words is "two billion, five hundred five million, three hundred twenty thousand, five hundred ninety-one".