2520556131 has 16 divisors (see below), whose sum is σ = 3691434240. Its totient is φ = 1522715040.

The previous prime is 2520556127. The next prime is 2520556133. The reversal of 2520556131 is 1316550252.

It is a happy number.

It is not a de Polignac number, because 2520556131 - 2² = 2520556127 is a prime.

It is a super-2 number, since 2×2520556131² = 12706406419043378322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2520556133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960000 + ... + 962621.

It is an arithmetic number, because the mean of its divisors is an integer number (230714640).

Almost surely, 2^2520556131 is an apocalyptic number.

2520556131 is a deficient number, since it is larger than the sum of its proper divisors (1170878109).

2520556131 is a wasteful number, since it uses less digits than its factorization.

2520556131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1922666.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 2520556131 is about 50205.1404838190. The cubic root of 2520556131 is about 1360.9185207629.

The spelling of 2520556131 in words is "two billion, five hundred twenty million, five hundred fifty-six thousand, one hundred thirty-one".