2521413321 has 16 divisors (see below), whose sum is σ = 3907276800. Its totient is φ = 1416386448.

The previous prime is 2521413319. The next prime is 2521413337. The reversal of 2521413321 is 1233141252.

2521413321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2521413321 - 2¹ = 2521413319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2521413291 and 2521413300.

It is not an unprimeable number, because it can be changed into a prime (2521413721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1016281 + ... + 1018758.

It is an arithmetic number, because the mean of its divisors is an integer number (244204800).

Almost surely, 2^2521413321 is an apocalyptic number.

2521413321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2521413321 is a deficient number, since it is larger than the sum of its proper divisors (1385863479).

2521413321 is a wasteful number, since it uses less digits than its factorization.

2521413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035108.

The product of its digits is 1440, while the sum is 24.

The square root of 2521413321 is about 50213.6766329652. The cubic root of 2521413321 is about 1361.0727768700.

Adding to 2521413321 its reverse (1233141252), we get a palindrome (3754554573).

The spelling of 2521413321 in words is "two billion, five hundred twenty-one million, four hundred thirteen thousand, three hundred twenty-one".