22573457 has 2 divisors, whose sum is σ = 22573458. Its totient is φ = 22573456.

The previous prime is 22573429. The next prime is 22573483. The reversal of 22573457 is 75437522.

22573457 is nontrivially palindromic in base 8.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18395521 + 4177936 = 4289^2 + 2044^2 .

It is a cyclic number.

It is not a de Polignac number, because 22573457 - 2⁶ = 22573393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22573417) 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, 11286728 + 11286729.

It is an arithmetic number, because the mean of its divisors is an integer number (11286729).

Almost surely, 2^22573457 is an apocalyptic number.

It is an amenable number.

22573457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22573457 is an equidigital number, since it uses as much as digits as its factorization.

22573457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 35.

The square root of 22573457 is about 4751.1532284278. The cubic root of 22573457 is about 282.6177001913.

The spelling of 22573457 in words is "twenty-two million, five hundred seventy-three thousand, four hundred fifty-seven".