2521317120 has 288 divisors, whose sum is σ = 9307296768. Its totient is φ = 569769984.

The previous prime is 2521317047. The next prime is 2521317137. The reversal of 2521317120 is 217131252.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2606877 + ... + 2607843.

Almost surely, 2^2521317120 is an apocalyptic number.

2521317120 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 2521317120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4653648384).

2521317120 is an abundant number, since it is smaller than the sum of its proper divisors (6785979648).

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

2521317120 is an equidigital number, since it uses as much as digits as its factorization.

2521317120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1081 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 2521317120 is about 50212.7187075147. The cubic root of 2521317120 is about 1361.0554667069.

Adding to 2521317120 its reverse (217131252), we get a palindrome (2738448372).

The spelling of 2521317120 in words is "two billion, five hundred twenty-one million, three hundred seventeen thousand, one hundred twenty".