2521112525 has 24 divisors (see below), whose sum is σ = 3150319200. Its totient is φ = 2001384000.

The previous prime is 2521112507. The next prime is 2521112579. The reversal of 2521112525 is 5252111252.

It is a happy number.

It is not a de Polignac number, because 2521112525 - 2²⁶ = 2454003661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2521112494 and 2521112503.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2398250 + ... + 2399300.

It is an arithmetic number, because the mean of its divisors is an integer number (131263300).

Almost surely, 2^2521112525 is an apocalyptic number.

2521112525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2521112525 is a deficient number, since it is larger than the sum of its proper divisors (629206675).

2521112525 is a wasteful number, since it uses less digits than its factorization.

2521112525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709 (or 1704 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 2521112525 is about 50210.6813835463. The cubic root of 2521112525 is about 1361.0186509393.

Adding to 2521112525 its reverse (5252111252), we get a palindrome (7773223777).

The spelling of 2521112525 in words is "two billion, five hundred twenty-one million, one hundred twelve thousand, five hundred twenty-five".