2539556916 has 36 divisors (see below), whose sum is σ = 6416518752. Its totient is φ = 781401504.

The previous prime is 2539556869. The next prime is 2539556927. The reversal of 2539556916 is 6196559352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 624096 + ... + 628151.

It is an arithmetic number, because the mean of its divisors is an integer number (178236632).

Almost surely, 2^2539556916 is an apocalyptic number.

2539556916 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2539556916 is an abundant number, since it is smaller than the sum of its proper divisors (3876961836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2539556916 is a wasteful number, since it uses less digits than its factorization.

2539556916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252280 (or 1252265 counting only the distinct ones).

The product of its digits is 2187000, while the sum is 51.

The square root of 2539556916 is about 50394.0166686483. The cubic root of 2539556916 is about 1364.3296481682.

The spelling of 2539556916 in words is "two billion, five hundred thirty-nine million, five hundred fifty-six thousand, nine hundred sixteen".