2521232806720 has 112 divisors (see below), whose sum is σ = 6374169745920. Its totient is φ = 946582953984.

The previous prime is 2521232806717. The next prime is 2521232806723. The reversal of 2521232806720 is 276082321252.

It is an interprime number because it is at equal distance from previous prime (2521232806717) and next prime (2521232806723).

It is a super-2 number, since 2×2521232806720² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521232806723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365061 + ... + 2627899.

Almost surely, 2^{2521232806720} is an apocalyptic number.

2521232806720 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 2521232806720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3187084872960).

2521232806720 is an abundant number, since it is smaller than the sum of its proper divisors (3852936939200).

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

2521232806720 is a wasteful number, since it uses less digits than its factorization.

2521232806720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263240 (or 1263230 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 2521232806720 in words is "two trillion, five hundred twenty-one billion, two hundred thirty-two million, eight hundred six thousand, seven hundred twenty".