2499987500 has 36 divisors (see below), whose sum is σ = 5468400000. Its totient is φ = 999990000.

The previous prime is 2499987493. The next prime is 2499987517. The reversal of 2499987500 is 57899942.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87500 + ... + 112499.

It is an arithmetic number, because the mean of its divisors is an integer number (151900000).

Almost surely, 2^2499987500 is an apocalyptic number.

2499987500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2499987500 is an abundant number, since it is smaller than the sum of its proper divisors (2968412500).

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

2499987500 is an equidigital number, since it uses as much as digits as its factorization.

2499987500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200028 (or 200006 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 2499987500 is about 49999.8749998437. The cubic root of 2499987500 is about 1357.2065462790.

The spelling of 2499987500 in words is "two billion, four hundred ninety-nine million, nine hundred eighty-seven thousand, five hundred".