25858212 has 12 divisors (see below), whose sum is σ = 60335856. Its totient is φ = 8619400.

The previous prime is 25858199. The next prime is 25858213. The reversal of 25858212 is 21285852.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25858213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1077414 + ... + 1077437.

It is an arithmetic number, because the mean of its divisors is an integer number (5027988).

Almost surely, 2^25858212 is an apocalyptic number.

It is an amenable number.

25858212 is an abundant number, since it is smaller than the sum of its proper divisors (34477644).

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

25858212 is a wasteful number, since it uses less digits than its factorization.

25858212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154858 (or 2154856 counting only the distinct ones).

The product of its digits is 12800, while the sum is 33.

The square root of 25858212 is about 5085.0970492214. The cubic root of 25858212 is about 295.7101039273.

The spelling of 25858212 in words is "twenty-five million, eight hundred fifty-eight thousand, two hundred twelve".