2501980650 has 120 divisors (see below), whose sum is σ = 7486710924. Its totient is φ = 615859200.

The previous prime is 2501980631. The next prime is 2501980669. The reversal of 2501980650 is 560891052.

It is a happy number.

2501980650 is a `hidden beast` number, since 2 + 501 + 98 + 0 + 65 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2501980631) and next prime (2501980669).

It can be written as a sum of positive squares in 6 ways, for example, as 977000049 + 1524980601 = 31257^2 + 39051^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 28890 + ... + 76410.

Almost surely, 2^2501980650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2501980650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3743355462).

2501980650 is an abundant number, since it is smaller than the sum of its proper divisors (4984730274).

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

2501980650 is a wasteful number, since it uses less digits than its factorization.

2501980650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47558 (or 47544 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 2501980650 is about 50019.8025785788. The cubic root of 2501980650 is about 1357.5671344351.

The spelling of 2501980650 in words is "two billion, five hundred one million, nine hundred eighty thousand, six hundred fifty".