2501662720 has 48 divisors (see below), whose sum is σ = 6002549280. Its totient is φ = 1000660992.

The previous prime is 2501662697. The next prime is 2501662739. The reversal of 2501662720 is 272661052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111912 + ... + 132391.

It is an arithmetic number, because the mean of its divisors is an integer number (125053110).

Almost surely, 2^2501662720 is an apocalyptic number.

2501662720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2501662720 is an abundant number, since it is smaller than the sum of its proper divisors (3500886560).

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

2501662720 is an equidigital number, since it uses as much as digits as its factorization.

2501662720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244330 (or 244310 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2501662720 is about 50016.6244362812. The cubic root of 2501662720 is about 1357.5096293804.

The spelling of 2501662720 in words is "two billion, five hundred one million, six hundred sixty-two thousand, seven hundred twenty".