25115229 has 12 divisors (see below), whose sum is σ = 36323196. Its totient is φ = 16722432.

The previous prime is 25115227. The next prime is 25115257. The reversal of 25115229 is 92251152.

It can be written as a sum of positive squares in 2 ways, for example, as 7851204 + 17264025 = 2802^2 + 4155^2 .

It is not a de Polignac number, because 25115229 - 2¹ = 25115227 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25115221) 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 11 ways as a sum of consecutive naturals, for example, 9807 + ... + 12099.

It is an arithmetic number, because the mean of its divisors is an integer number (3026933).

Almost surely, 2^25115229 is an apocalyptic number.

It is an amenable number.

25115229 is a deficient number, since it is larger than the sum of its proper divisors (11207967).

25115229 is a wasteful number, since it uses less digits than its factorization.

25115229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516 (or 3513 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 25115229 is about 5011.5096527893. The cubic root of 25115229 is about 292.8503275602.

The spelling of 25115229 in words is "twenty-five million, one hundred fifteen thousand, two hundred twenty-nine".