22772057 has 16 divisors (see below), whose sum is σ = 29162112. Its totient is φ = 17262720.

The previous prime is 22772041. The next prime is 22772059. The reversal of 22772057 is 75027722.

It is not a de Polignac number, because 22772057 - 2⁴ = 22772041 is a prime.

It is a super-2 number, since 2×22772057² = 1037133160022498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22772059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148 + ... + 6845.

It is an arithmetic number, because the mean of its divisors is an integer number (1822632).

Almost surely, 2^22772057 is an apocalyptic number.

It is an amenable number.

22772057 is a deficient number, since it is larger than the sum of its proper divisors (6390055).

22772057 is a wasteful number, since it uses less digits than its factorization.

22772057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8048.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 22772057 is about 4772.0076487784. The cubic root of 22772057 is about 283.4440995596. Note that the first 3 decimals are identical.

Adding to 22772057 its reverse (75027722), we get a palindrome (97799779).

It can be divided in two parts, 2277 and 2057, that added together give a palindrome (4334).

The spelling of 22772057 in words is "twenty-two million, seven hundred seventy-two thousand, fifty-seven".