2499999992 has 24 divisors (see below), whose sum is σ = 5452806960. Its totient is φ = 1071428400.

The previous prime is 2499999977. The next prime is 2500000001. The reversal of 2499999992 is 2999999942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3188384 + ... + 3189167.

It is an arithmetic number, because the mean of its divisors is an integer number (227200290).

Almost surely, 2^2499999992 is an apocalyptic number.

It is an amenable number.

2499999992 is an abundant number, since it is smaller than the sum of its proper divisors (2952806968).

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

2499999992 is a wasteful number, since it uses less digits than its factorization.

2499999992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377571 (or 6377560 counting only the distinct ones).

The product of its digits is 76527504, while the sum is 71.

The square root of 2499999992 is about 49999.9999200000. Note that the first 4 decimals coincide. The cubic root of 2499999992 is about 1357.2088068498.

It can be divided in two parts, 2 and 499999992, that added together give a palindrome (499999994).

The spelling of 2499999992 in words is "two billion, four hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-two".