25312245 has 16 divisors (see below), whose sum is σ = 46285440. Its totient is φ = 11571264.

The previous prime is 25312229. The next prime is 25312249. The reversal of 25312245 is 54221352.

It is not a de Polignac number, because 25312245 - 2⁴ = 25312229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25312249) 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, 120430 + ... + 120639.

It is an arithmetic number, because the mean of its divisors is an integer number (2892840).

Almost surely, 2^25312245 is an apocalyptic number.

It is an amenable number.

25312245 is a deficient number, since it is larger than the sum of its proper divisors (20973195).

25312245 is a wasteful number, since it uses less digits than its factorization.

25312245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241084.

The product of its digits is 2400, while the sum is 24.

The square root of 25312245 is about 5031.1276072070. The cubic root of 25312245 is about 293.6140871177.

Adding to 25312245 its reverse (54221352), we get a palindrome (79533597).

The spelling of 25312245 in words is "twenty-five million, three hundred twelve thousand, two hundred forty-five".