2499992500 has 60 divisors (see below), whose sum is σ = 5478349492. Its totient is φ = 997920000.

The previous prime is 2499992401. The next prime is 2499992519. The reversal of 2499992500 is 52999942.

It can be written as a sum of positive squares in 10 ways, for example, as 1174158756 + 1325833744 = 34266^2 + 36412^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1891840 + ... + 1893160.

Almost surely, 2^2499992500 is an apocalyptic number.

2499992500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499992500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2739174746).

2499992500 is an abundant number, since it is smaller than the sum of its proper divisors (2978356992).

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

2499992500 is a wasteful number, since it uses less digits than its factorization.

2499992500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 2499992500 is about 49999.9249999437. The cubic root of 2499992500 is about 1357.2074510873.

The spelling of 2499992500 in words is "two billion, four hundred ninety-nine million, nine hundred ninety-two thousand, five hundred".