2530722688 has 128 divisors (see below), whose sum is σ = 5622835680. Its totient is φ = 1127153664.

The previous prime is 2530722619. The next prime is 2530722713. The reversal of 2530722688 is 8862270352.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

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, 8085220 + ... + 8085532.

Almost surely, 2^2530722688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2530722688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2811417840).

2530722688 is an abundant number, since it is smaller than the sum of its proper divisors (3092112992).

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

2530722688 is a wasteful number, since it uses less digits than its factorization.

2530722688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 2530722688 is about 50306.2887520040. The cubic root of 2530722688 is about 1362.7458020524.

The spelling of 2530722688 in words is "two billion, five hundred thirty million, seven hundred twenty-two thousand, six hundred eighty-eight".