2543503293 has 12 divisors (see below), whose sum is σ = 3674573760. Its totient is φ = 1695380616.

The previous prime is 2543503271. The next prime is 2543503349. The reversal of 2543503293 is 3923053452.

2543503293 is a `hidden beast` number, since 25 + 43 + 503 + 2 + 93 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2543503293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2543503213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41178 + ... + 82356.

It is an arithmetic number, because the mean of its divisors is an integer number (306214480).

Almost surely, 2^2543503293 is an apocalyptic number.

It is an amenable number.

2543503293 is a deficient number, since it is larger than the sum of its proper divisors (1131070467).

2543503293 is a wasteful number, since it uses less digits than its factorization.

2543503293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48048 (or 48045 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 2543503293 is about 50433.1566828808. The cubic root of 2543503293 is about 1365.0359882634.

The spelling of 2543503293 in words is "two billion, five hundred forty-three million, five hundred three thousand, two hundred ninety-three".