25312246 has 4 divisors (see below), whose sum is σ = 37968372. Its totient is φ = 12656122.

The previous prime is 25312229. The next prime is 25312249. The reversal of 25312246 is 64221352.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 25312246.

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 as a sum of consecutive naturals, namely, 6328060 + ... + 6328063.

It is an arithmetic number, because the mean of its divisors is an integer number (9492093).

Almost surely, 2^25312246 is an apocalyptic number.

25312246 is a deficient number, since it is larger than the sum of its proper divisors (12656126).

25312246 is a wasteful number, since it uses less digits than its factorization.

25312246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12656125.

The product of its digits is 2880, while the sum is 25.

The square root of 25312246 is about 5031.1277065883. The cubic root of 25312246 is about 293.6140909843.

Adding to 25312246 its reverse (64221352), we get a palindrome (89533598).

The spelling of 25312246 in words is "twenty-five million, three hundred twelve thousand, two hundred forty-six".