25506936 has 192 divisors, whose sum is σ = 90417600. Its totient is φ = 6303744.

The previous prime is 25506907. The next prime is 25506937. The reversal of 25506936 is 63960552.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25506936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25506937) 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 47 ways as a sum of consecutive naturals, for example, 111270 + ... + 111498.

It is an arithmetic number, because the mean of its divisors is an integer number (470925).

Almost surely, 2^25506936 is an apocalyptic number.

25506936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25506936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45208800).

25506936 is an abundant number, since it is smaller than the sum of its proper divisors (64910664).

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

25506936 is a wasteful number, since it uses less digits than its factorization.

25506936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 25506936 is about 5050.4391888231. The cubic root of 25506936 is about 294.3649500944.

The spelling of 25506936 in words is "twenty-five million, five hundred six thousand, nine hundred thirty-six".