2500530780 has 48 divisors (see below), whose sum is σ = 7637986944. Its totient is φ = 606189120.

The previous prime is 2500530779. The next prime is 2500530787. The reversal of 2500530780 is 870350052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500530787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1893682 + ... + 1895001.

It is an arithmetic number, because the mean of its divisors is an integer number (159124728).

Almost surely, 2^2500530780 is an apocalyptic number.

2500530780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2500530780 is an abundant number, since it is smaller than the sum of its proper divisors (5137456164).

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

2500530780 is a wasteful number, since it uses less digits than its factorization.

2500530780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788706 (or 3788704 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2500530780 is about 50005.3075183025. The cubic root of 2500530780 is about 1357.3048520729.

The spelling of 2500530780 in words is "two billion, five hundred million, five hundred thirty thousand, seven hundred eighty".