25668504 has 96 divisors (see below), whose sum is σ = 74945520. Its totient is φ = 7907328.

The previous prime is 25668499. The next prime is 25668523. The reversal of 25668504 is 40586652.

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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81852 + ... + 82164.

Almost surely, 2^25668504 is an apocalyptic number.

25668504 is a gapful number since it is divisible by the number (24) 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 25668504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37472760).

25668504 is an abundant number, since it is smaller than the sum of its proper divisors (49277016).

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

25668504 is a wasteful number, since it uses less digits than its factorization.

25668504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 25668504 is about 5066.4093794323. The cubic root of 25668504 is about 294.9851720978.

The spelling of 25668504 in words is "twenty-five million, six hundred sixty-eight thousand, five hundred four".