2539487800 has 48 divisors (see below), whose sum is σ = 5943481200. Its totient is φ = 1009056000.

The previous prime is 2539487749. The next prime is 2539487803. The reversal of 2539487800 is 87849352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2539487803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11845 + ... + 72244.

It is an arithmetic number, because the mean of its divisors is an integer number (123822525).

Almost surely, 2^2539487800 is an apocalyptic number.

2539487800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2539487800 is an abundant number, since it is smaller than the sum of its proper divisors (3403993400).

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

2539487800 is a wasteful number, since it uses less digits than its factorization.

2539487800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84256 (or 84247 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 2539487800 is about 50393.3309079684. The cubic root of 2539487800 is about 1364.3172709614.

The spelling of 2539487800 in words is "two billion, five hundred thirty-nine million, four hundred eighty-seven thousand, eight hundred".