22368725 has 6 divisors (see below), whose sum is σ = 27737250. Its totient is φ = 17894960.

The previous prime is 22368721. The next prime is 22368737. The reversal of 22368725 is 52786322.

It can be written as a sum of positive squares in 3 ways, for example, as 306916 + 22061809 = 554^2 + 4697^2 .

It is not a de Polignac number, because 22368725 - 2² = 22368721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22368721) 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 5 ways as a sum of consecutive naturals, for example, 447350 + ... + 447399.

It is an arithmetic number, because the mean of its divisors is an integer number (4622875).

Almost surely, 2^22368725 is an apocalyptic number.

22368725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22368725 is a deficient number, since it is larger than the sum of its proper divisors (5368525).

22368725 is an equidigital number, since it uses as much as digits as its factorization.

22368725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894759 (or 894754 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 22368725 is about 4729.5586474850. The cubic root of 22368725 is about 281.7606951612.

The spelling of 22368725 in words is "twenty-two million, three hundred sixty-eight thousand, seven hundred twenty-five".