2572517539 has 2 divisors, whose sum is σ = 2572517540. Its totient is φ = 2572517538.

The previous prime is 2572517531. The next prime is 2572517543. The reversal of 2572517539 is 9357152752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2572517539 - 2³ = 2572517531 is a prime.

It is not a weakly prime, because it can be changed into another prime (2572517531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286258769 + 1286258770.

It is an arithmetic number, because the mean of its divisors is an integer number (1286258770).

Almost surely, 2^2572517539 is an apocalyptic number.

2572517539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2572517539 is an equidigital number, since it uses as much as digits as its factorization.

2572517539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 661500, while the sum is 46.

The square root of 2572517539 is about 50719.9915122233. The cubic root of 2572517539 is about 1370.2067883641.

It can be divided in two parts, 25725 and 17539, that added together give a square (43264 = 208²).

The spelling of 2572517539 in words is "two billion, five hundred seventy-two million, five hundred seventeen thousand, five hundred thirty-nine".