22628057 has 2 divisors, whose sum is σ = 22628058. Its totient is φ = 22628056.

The previous prime is 22628051. The next prime is 22628059. The reversal of 22628057 is 75082622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16556761 + 6071296 = 4069^2 + 2464^2 .

It is a cyclic number.

It is not a de Polignac number, because 22628057 - 2¹² = 22623961 is a prime.

Together with 22628059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22628051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11314028 + 11314029.

It is an arithmetic number, because the mean of its divisors is an integer number (11314029).

Almost surely, 2^22628057 is an apocalyptic number.

It is an amenable number.

22628057 is a deficient number, since it is larger than the sum of its proper divisors (1).

22628057 is an equidigital number, since it uses as much as digits as its factorization.

22628057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 22628057 is about 4756.8957314619. The cubic root of 22628057 is about 282.8453791246.

The spelling of 22628057 in words is "twenty-two million, six hundred twenty-eight thousand, fifty-seven".