22126725 has 36 divisors (see below), whose sum is σ = 40570816. Its totient is φ = 11521440.

The previous prime is 22126723. The next prime is 22126747. The reversal of 22126725 is 52762122.

It is not a de Polignac number, because 22126725 - 2¹ = 22126723 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22126723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8532 + ... + 10818.

Almost surely, 2^22126725 is an apocalyptic number.

22126725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22126725 is a deficient number, since it is larger than the sum of its proper divisors (18444091).

22126725 is a wasteful number, since it uses less digits than its factorization.

22126725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346 (or 2338 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 22126725 is about 4703.9052924140. The cubic root of 22126725 is about 280.7409161125.

Adding to 22126725 its reverse (52762122), we get a palindrome (74888847).

The spelling of 22126725 in words is "twenty-two million, one hundred twenty-six thousand, seven hundred twenty-five".