25623212 has 18 divisors (see below), whose sum is σ = 45551772. Its totient is φ = 12611544.

The previous prime is 25623197. The next prime is 25623217. The reversal of 25623212 is 21232652.

It is not an unprimeable number, because it can be changed into a prime (25623217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17243 + ... + 18669.

It is an arithmetic number, because the mean of its divisors is an integer number (2530654).

Almost surely, 2^25623212 is an apocalyptic number.

It is an amenable number.

25623212 is a deficient number, since it is larger than the sum of its proper divisors (19928560).

25623212 is a wasteful number, since it uses less digits than its factorization.

25623212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565 (or 1496 counting only the distinct ones).

The product of its digits is 1440, while the sum is 23.

The square root of 25623212 is about 5061.9375736965. The cubic root of 25623212 is about 294.8115697939.

Adding to 25623212 its reverse (21232652), we get a palindrome (46855864).

The spelling of 25623212 in words is "twenty-five million, six hundred twenty-three thousand, two hundred twelve".