22254775 has 12 divisors (see below), whose sum is σ = 27670104. Its totient is φ = 17756000.

The previous prime is 22254773. The next prime is 22254811. The reversal of 22254775 is 57745222.

It is a happy number.

It is not a de Polignac number, because 22254775 - 2¹ = 22254773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22254775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22254773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10560 + ... + 12490.

It is an arithmetic number, because the mean of its divisors is an integer number (2305842).

Almost surely, 2^22254775 is an apocalyptic number.

22254775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22254775 is a deficient number, since it is larger than the sum of its proper divisors (5415329).

22254775 is a wasteful number, since it uses less digits than its factorization.

22254775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2397 counting only the distinct ones).

The product of its digits is 39200, while the sum is 34.

The square root of 22254775 is about 4717.4966878632. The cubic root of 22254775 is about 281.2814351695.

Adding to 22254775 its reverse (57745222), we get a palindrome (79999997).

The spelling of 22254775 in words is "twenty-two million, two hundred fifty-four thousand, seven hundred seventy-five".