25655212 has 48 divisors (see below), whose sum is σ = 51819264. Its totient is φ = 11000000.

The previous prime is 25655209. The next prime is 25655237. The reversal of 25655212 is 21255652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102087 + ... + 102337.

It is an arithmetic number, because the mean of its divisors is an integer number (1079568).

Almost surely, 2^25655212 is an apocalyptic number.

25655212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25655212 is an abundant number, since it is smaller than the sum of its proper divisors (26164052).

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

25655212 is a wasteful number, since it uses less digits than its factorization.

25655212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390 (or 388 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 25655212 is about 5065.0974324291. The cubic root of 25655212 is about 294.9342456147.

It can be divided in two parts, 2565 and 5212, that added together give a palindrome (7777).

The spelling of 25655212 in words is "twenty-five million, six hundred fifty-five thousand, two hundred twelve".