22442575 has 6 divisors (see below), whose sum is σ = 27828824. Its totient is φ = 17954040.

The previous prime is 22442573. The next prime is 22442633. The reversal of 22442575 is 57524422.

It is not a de Polignac number, because 22442575 - 2¹ = 22442573 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 (22442573) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448827 + ... + 448876.

Almost surely, 2^22442575 is an apocalyptic number.

22442575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22442575 is a deficient number, since it is larger than the sum of its proper divisors (5386249).

22442575 is an equidigital number, since it uses as much as digits as its factorization.

22442575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897713 (or 897708 counting only the distinct ones).

The product of its digits is 22400, while the sum is 31.

The square root of 22442575 is about 4737.3594965972. The cubic root of 22442575 is about 282.0704307424.

Adding to 22442575 its reverse (57524422), we get a palindrome (79966997).

It can be divided in two parts, 2244 and 2575, that multiplied together give a triangular number (5778300 = T₃₃₉₉).

The spelling of 22442575 in words is "twenty-two million, four hundred forty-two thousand, five hundred seventy-five".