25225115 has 4 divisors (see below), whose sum is σ = 30270144. Its totient is φ = 20180088.

The previous prime is 25225087. The next prime is 25225117. The reversal of 25225115 is 51152252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25225115 - 2¹⁶ = 25159579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25225117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2522507 + ... + 2522516.

It is an arithmetic number, because the mean of its divisors is an integer number (7567536).

Almost surely, 2^25225115 is an apocalyptic number.

25225115 is a deficient number, since it is larger than the sum of its proper divisors (5045029).

25225115 is an equidigital number, since it uses as much as digits as its factorization.

25225115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5045028.

The product of its digits is 1000, while the sum is 23.

The square root of 25225115 is about 5022.4610501227. The cubic root of 25225115 is about 293.2768062851.

Adding to 25225115 its reverse (51152252), we get a palindrome (76377367).

The spelling of 25225115 in words is "twenty-five million, two hundred twenty-five thousand, one hundred fifteen".