22028057 has 2 divisors, whose sum is σ = 22028058. Its totient is φ = 22028056.

The previous prime is 22028051. The next prime is 22028077. The reversal of 22028057 is 75082022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13756681 + 8271376 = 3709^2 + 2876^2 .

It is a cyclic number.

It is not a de Polignac number, because 22028057 - 2¹⁴ = 22011673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22028051) 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 as a sum of consecutive naturals, namely, 11014028 + 11014029.

It is an arithmetic number, because the mean of its divisors is an integer number (11014029).

Almost surely, 2^22028057 is an apocalyptic number.

It is an amenable number.

22028057 is a deficient number, since it is larger than the sum of its proper divisors (1).

22028057 is an equidigital number, since it uses as much as digits as its factorization.

22028057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 22028057 is about 4693.4056930975. The cubic root of 22028057 is about 280.3229988544.

The spelling of 22028057 in words is "twenty-two million, twenty-eight thousand, fifty-seven".