25312312 has 32 divisors (see below), whose sum is σ = 48751200. Its totient is φ = 12317184.

The previous prime is 25312297. The next prime is 25312327. The reversal of 25312312 is 21321352.

It is an interprime number because it is at equal distance from previous prime (25312297) and next prime (25312327).

It is a self number, because there is not a number n which added to its sum of digits gives 25312312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51733 + ... + 52219.

It is an arithmetic number, because the mean of its divisors is an integer number (1523475).

Almost surely, 2^25312312 is an apocalyptic number.

It is an amenable number.

25312312 is a deficient number, since it is larger than the sum of its proper divisors (23438888).

25312312 is a wasteful number, since it uses less digits than its factorization.

25312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 651 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 25312312 is about 5031.1342657496. The cubic root of 25312312 is about 293.6143461771.

Adding to 25312312 its reverse (21321352), we get a palindrome (46633664).

The spelling of 25312312 in words is "twenty-five million, three hundred twelve thousand, three hundred twelve".