25223859 has 16 divisors (see below), whose sum is σ = 37722240. Its totient is φ = 16656840.

The previous prime is 25223839. The next prime is 25223921. The reversal of 25223859 is 95832252.

It is not a de Polignac number, because 25223859 - 2⁵ = 25223827 is a prime.

It is a Smith number, since the sum of its digits (36) 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 (25223839) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1477 + ... + 7254.

It is an arithmetic number, because the mean of its divisors is an integer number (2357640).

Almost surely, 2^25223859 is an apocalyptic number.

25223859 is a deficient number, since it is larger than the sum of its proper divisors (12498381).

25223859 is a wasteful number, since it uses less digits than its factorization.

25223859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8847 (or 8841 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 25223859 is about 5022.3360102645. The cubic root of 25223859 is about 293.2719386260.

The spelling of 25223859 in words is "twenty-five million, two hundred twenty-three thousand, eight hundred fifty-nine".