25551204 has 96 divisors (see below), whose sum is σ = 74753280. Its totient is φ = 6623232.

The previous prime is 25551193. The next prime is 25551217. The reversal of 25551204 is 40215552.

It is a happy number.

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 31 ways as a sum of consecutive naturals, for example, 41104 + ... + 41720.

It is an arithmetic number, because the mean of its divisors is an integer number (778680).

Almost surely, 2^25551204 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 25551204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37376640).

25551204 is an abundant number, since it is smaller than the sum of its proper divisors (49202076).

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

25551204 is a wasteful number, since it uses less digits than its factorization.

25551204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 25551204 is about 5054.8198780965. The cubic root of 25551204 is about 294.5351445380.

Adding to 25551204 its reverse (40215552), we get a palindrome (65766756).

The spelling of 25551204 in words is "twenty-five million, five hundred fifty-one thousand, two hundred four".