2521163120 has 80 divisors (see below), whose sum is σ = 6750425088. Its totient is φ = 857775360.

The previous prime is 2521163119. The next prime is 2521163149. The reversal of 2521163120 is 213611252.

It is a tau number, because it is divible by the number of its divisors (80).

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, 56177 + ... + 90543.

Almost surely, 2^2521163120 is an apocalyptic number.

2521163120 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 2521163120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3375212544).

2521163120 is an abundant number, since it is smaller than the sum of its proper divisors (4229261968).

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

2521163120 is a wasteful number, since it uses less digits than its factorization.

2521163120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34518 (or 34512 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2521163120 is about 50211.1852080789. The cubic root of 2521163120 is about 1361.0277554223.

Adding to 2521163120 its reverse (213611252), we get a palindrome (2734774372).

The spelling of 2521163120 in words is "two billion, five hundred twenty-one million, one hundred sixty-three thousand, one hundred twenty".