22225761 has 6 divisors (see below), whose sum is σ = 32103890. Its totient is φ = 14817168.

The previous prime is 22225759. The next prime is 22225771. The reversal of 22225761 is 16752222.

It can be written as a sum of positive squares in only one way, i.e., 14017536 + 8208225 = 3744^2 + 2865^2 .

It is not a de Polignac number, because 22225761 - 2¹ = 22225759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22225771) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1234756 + ... + 1234773.

Almost surely, 2^22225761 is an apocalyptic number.

It is an amenable number.

22225761 is a deficient number, since it is larger than the sum of its proper divisors (9878129).

22225761 is a wasteful number, since it uses less digits than its factorization.

22225761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2469535 (or 2469532 counting only the distinct ones).

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

The square root of 22225761 is about 4714.4205370332. The cubic root of 22225761 is about 281.1591445790.

Adding to 22225761 its reverse (16752222), we get a palindrome (38977983).

The spelling of 22225761 in words is "twenty-two million, two hundred twenty-five thousand, seven hundred sixty-one".