2521425 has 12 divisors (see below), whose sum is σ = 4168880. Its totient is φ = 1344720.

The previous prime is 2521417. The next prime is 2521429. The reversal of 2521425 is 5241252.

It is a happy number.

2521425 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 2521425 - 2³ = 2521417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2521429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16735 + ... + 16884.

2^2521425 is an apocalyptic number.

2521425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2521425 is a deficient number, since it is larger than the sum of its proper divisors (1647455).

2521425 is a wasteful number, since it uses less digits than its factorization.

2521425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33632 (or 33627 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 2521425 is about 1587.8995560173. The cubic root of 2521425 is about 136.1074878330.

Adding to 2521425 its reverse (5241252), we get a palindrome (7762677).

The spelling of 2521425 in words is "two million, five hundred twenty-one thousand, four hundred twenty-five".