25223868 has 36 divisors (see below), whose sum is σ = 67117960. Its totient is φ = 7965216.

The previous prime is 25223839. The next prime is 25223921. The reversal of 25223868 is 86832252.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17755 + ... + 19122.

Almost surely, 2^25223868 is an apocalyptic number.

It is an amenable number.

25223868 is an abundant number, since it is smaller than the sum of its proper divisors (41894092).

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

25223868 is a wasteful number, since it uses less digits than its factorization.

25223868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36906 (or 36901 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 25223868 is about 5022.3369062619. The cubic root of 25223868 is about 293.2719735063.

The spelling of 25223868 in words is "twenty-five million, two hundred twenty-three thousand, eight hundred sixty-eight".