42224653 has 2 divisors, whose sum is σ = 42224654. Its totient is φ = 42224652.

The previous prime is 42224647. The next prime is 42224657. The reversal of 42224653 is 35642224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42029289 + 195364 = 6483^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 42224653 - 2⁵ = 42224621 is a prime.

It is equal to p_2560447 and since 42224653 and 2560447 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42224657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21112326 + 21112327.

It is an arithmetic number, because the mean of its divisors is an integer number (21112327).

Almost surely, 2^42224653 is an apocalyptic number.

It is an amenable number.

42224653 is a deficient number, since it is larger than the sum of its proper divisors (1).

42224653 is an equidigital number, since it uses as much as digits as its factorization.

42224653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 28.

The square root of 42224653 is about 6498.0499382507. The cubic root of 42224653 is about 348.2213245070.

Adding to 42224653 its reverse (35642224), we get a palindrome (77866877).

The spelling of 42224653 in words is "forty-two million, two hundred twenty-four thousand, six hundred fifty-three".