22243057 has 4 divisors (see below), whose sum is σ = 22358500. Its totient is φ = 22127616.

The previous prime is 22243051. The next prime is 22243063. The reversal of 22243057 is 75034222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75034222 = 2 ⋅37517111.

It is an interprime number because it is at equal distance from previous prime (22243051) and next prime (22243063).

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 16654561 = 2364^2 + 4081^2 .

It is a cyclic number.

It is not a de Polignac number, because 22243057 - 2⁷ = 22242929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22243051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57432 + ... + 57817.

It is an arithmetic number, because the mean of its divisors is an integer number (5589625).

Almost surely, 2^22243057 is an apocalyptic number.

It is an amenable number.

22243057 is a deficient number, since it is larger than the sum of its proper divisors (115443).

22243057 is a wasteful number, since it uses less digits than its factorization.

22243057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115442.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22243057 is about 4716.2545520784. The cubic root of 22243057 is about 281.2320579830.

Adding to 22243057 its reverse (75034222), we get a palindrome (97277279).

The spelling of 22243057 in words is "twenty-two million, two hundred forty-three thousand, fifty-seven".