2539561708 has 12 divisors (see below), whose sum is σ = 4445730072. Its totient is φ = 1269353120.

The previous prime is 2539561657. The next prime is 2539561709. The reversal of 2539561708 is 8071659352.

It is not an unprimeable number, because it can be changed into a prime (2539561709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93385 + ... + 117472.

It is an arithmetic number, because the mean of its divisors is an integer number (370477506).

Almost surely, 2^2539561708 is an apocalyptic number.

It is an amenable number.

2539561708 is a deficient number, since it is larger than the sum of its proper divisors (1906168364).

2539561708 is a wasteful number, since it uses less digits than its factorization.

2539561708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213872 (or 213870 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 2539561708 is about 50394.0642139528. The cubic root of 2539561708 is about 1364.3305063052.

The spelling of 2539561708 in words is "two billion, five hundred thirty-nine million, five hundred sixty-one thousand, seven hundred eight".