2501291780 has 48 divisors (see below), whose sum is σ = 5660558400. Its totient is φ = 922935168.

The previous prime is 2501291777. The next prime is 2501291839. The reversal of 2501291780 is 871921052.

It is a self number, because there is not a number n which added to its sum of digits gives 2501291780.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608171 + ... + 612269.

It is an arithmetic number, because the mean of its divisors is an integer number (117928300).

Almost surely, 2^2501291780 is an apocalyptic number.

2501291780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2501291780 is an abundant number, since it is smaller than the sum of its proper divisors (3159266620).

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

2501291780 is a wasteful number, since it uses less digits than its factorization.

2501291780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6468 (or 6466 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 2501291780 is about 50012.9161317354. The cubic root of 2501291780 is about 1357.4425300724.

The spelling of 2501291780 in words is "two billion, five hundred one million, two hundred ninety-one thousand, seven hundred eighty".