2651002500 has 120 divisors (see below), whose sum is σ = 7763140000. Its totient is φ = 703872000.

The previous prime is 2651002499. The next prime is 2651002507. The reversal of 2651002500 is 52001562.

It is not an unprimeable number, because it can be changed into a prime (2651002507) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2121876 + ... + 2123124.

Almost surely, 2^2651002500 is an apocalyptic number.

2651002500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2651002500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3881570000).

2651002500 is an abundant number, since it is smaller than the sum of its proper divisors (5112137500).

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

2651002500 is a wasteful number, since it uses less digits than its factorization.

2651002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2651002500 is about 51487.8869249846. The cubic root of 2651002500 is about 1384.0019831629.

The spelling of 2651002500 in words is "two billion, six hundred fifty-one million, two thousand, five hundred".