25290312 has 32 divisors (see below), whose sum is σ = 63401280. Its totient is φ = 8406720.

The previous prime is 25290301. The next prime is 25290319. The reversal of 25290312 is 21309252.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (25290319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8853 + ... + 11355.

It is an arithmetic number, because the mean of its divisors is an integer number (1981290).

Almost surely, 2^25290312 is an apocalyptic number.

It is an amenable number.

25290312 is an abundant number, since it is smaller than the sum of its proper divisors (38110968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25290312 is a wasteful number, since it uses less digits than its factorization.

25290312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933 (or 2929 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 25290312 is about 5028.9474047757. The cubic root of 25290312 is about 293.5292573090.

Adding to 25290312 its reverse (21309252), we get a palindrome (46599564).

The spelling of 25290312 in words is "twenty-five million, two hundred ninety thousand, three hundred twelve".