2539516040 has 16 divisors (see below), whose sum is σ = 5713911180. Its totient is φ = 1015806400.

The previous prime is 2539516033. The next prime is 2539516093. The reversal of 2539516040 is 406159352.

2539516040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2420836804 + 118679236 = 49202^2 + 10894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31743911 + ... + 31743990.

Almost surely, 2^2539516040 is an apocalyptic number.

2539516040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2539516040 is an abundant number, since it is smaller than the sum of its proper divisors (3174395140).

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

2539516040 is a wasteful number, since it uses less digits than its factorization.

2539516040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63487912 (or 63487908 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 2539516040 is about 50393.6111029960. The cubic root of 2539516040 is about 1364.3223281724.

The spelling of 2539516040 in words is "two billion, five hundred thirty-nine million, five hundred sixteen thousand, forty".