2521112441 has 4 divisors (see below), whose sum is σ = 2522856192. Its totient is φ = 2519368692.

The previous prime is 2521112431. The next prime is 2521112443. The reversal of 2521112441 is 1442111252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2521112441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521112443) 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 3 ways as a sum of consecutive naturals, for example, 869705 + ... + 872598.

It is an arithmetic number, because the mean of its divisors is an integer number (630714048).

Almost surely, 2^2521112441 is an apocalyptic number.

It is an amenable number.

2521112441 is a deficient number, since it is larger than the sum of its proper divisors (1743751).

2521112441 is a wasteful number, since it uses less digits than its factorization.

2521112441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743750.

The product of its digits is 640, while the sum is 23.

The square root of 2521112441 is about 50210.6805470709. The cubic root of 2521112441 is about 1361.0186358236.

Adding to 2521112441 its reverse (1442111252), we get a palindrome (3963223693).

The spelling of 2521112441 in words is "two billion, five hundred twenty-one million, one hundred twelve thousand, four hundred forty-one".