2539894594 has 12 divisors (see below), whose sum is σ = 3835308582. Its totient is φ = 1261514400.

The previous prime is 2539894583. The next prime is 2539894603. The reversal of 2539894594 is 4954989352.

It can be written as a sum of positive squares in only one way, i.e., 1280709369 + 1259185225 = 35787^2 + 35485^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 17754 + ... + 73450.

Almost surely, 2^2539894594 is an apocalyptic number.

2539894594 is a deficient number, since it is larger than the sum of its proper divisors (1295413988).

2539894594 is an equidigital number, since it uses as much as digits as its factorization.

2539894594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56001 (or 55850 counting only the distinct ones).

The product of its digits is 13996800, while the sum is 58.

The square root of 2539894594 is about 50397.3669351882. The cubic root of 2539894594 is about 1364.3901158934.

The spelling of 2539894594 in words is "two billion, five hundred thirty-nine million, eight hundred ninety-four thousand, five hundred ninety-four".