22125804 has 48 divisors (see below), whose sum is σ = 55399680. Its totient is φ = 6851520.

The previous prime is 22125799. The next prime is 22125809. The reversal of 22125804 is 40852122.

It is an interprime number because it is at equal distance from previous prime (22125799) and next prime (22125809).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (22125809) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11169 + ... + 12999.

It is an arithmetic number, because the mean of its divisors is an integer number (1154160).

Almost surely, 2^22125804 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 22125804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27699840).

22125804 is an abundant number, since it is smaller than the sum of its proper divisors (33273876).

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

22125804 is a wasteful number, since it uses less digits than its factorization.

22125804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910 (or 1908 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 22125804 is about 4703.8073940160. The cubic root of 22125804 is about 280.7370208836.

Adding to 22125804 its reverse (40852122), we get a palindrome (62977926).

The spelling of 22125804 in words is "twenty-two million, one hundred twenty-five thousand, eight hundred four".