25102245 has 16 divisors (see below), whose sum is σ = 45901440. Its totient is φ = 11475264.

The previous prime is 25102213. The next prime is 25102247. The reversal of 25102245 is 54220152.

It is a happy number.

It is not a de Polignac number, because 25102245 - 2⁵ = 25102213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25102247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119430 + ... + 119639.

It is an arithmetic number, because the mean of its divisors is an integer number (2868840).

Almost surely, 2^25102245 is an apocalyptic number.

It is an amenable number.

25102245 is a deficient number, since it is larger than the sum of its proper divisors (20799195).

25102245 is a wasteful number, since it uses less digits than its factorization.

25102245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239084.

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

The square root of 25102245 is about 5010.2140672830. The cubic root of 25102245 is about 292.7998532167.

Adding to 25102245 its reverse (54220152), we get a palindrome (79322397).

The spelling of 25102245 in words is "twenty-five million, one hundred two thousand, two hundred forty-five".