25223936 has 36 divisors (see below), whose sum is σ = 51729552. Its totient is φ = 12266496.

The previous prime is 25223921. The next prime is 25223953. The reversal of 25223936 is 63932252.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8141 + ... + 10803.

It is an arithmetic number, because the mean of its divisors is an integer number (1436932).

Almost surely, 2^25223936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25223936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25864776).

25223936 is an abundant number, since it is smaller than the sum of its proper divisors (26505616).

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

25223936 is an equidigital number, since it uses as much as digits as its factorization.

25223936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716 (or 2702 counting only the distinct ones).

The product of its digits is 19440, while the sum is 32.

The square root of 25223936 is about 5022.3436760142. The cubic root of 25223936 is about 293.2722370460.

The spelling of 25223936 in words is "twenty-five million, two hundred twenty-three thousand, nine hundred thirty-six".