2539005816 has 32 divisors (see below), whose sum is σ = 6369960960. Its totient is φ = 843342432.

The previous prime is 2539005809. The next prime is 2539005817. The reversal of 2539005816 is 6185009352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539005817) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 180120 + ... + 193703.

It is an arithmetic number, because the mean of its divisors is an integer number (199061280).

Almost surely, 2^2539005816 is an apocalyptic number.

It is an amenable number.

2539005816 is an abundant number, since it is smaller than the sum of its proper divisors (3830955144).

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

2539005816 is a wasteful number, since it uses less digits than its factorization.

2539005816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374115 (or 374111 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 2539005816 is about 50388.5484609351. The cubic root of 2539005816 is about 1364.2309516254.

The spelling of 2539005816 in words is "two billion, five hundred thirty-nine million, five thousand, eight hundred sixteen".