22563533 has 2 divisors, whose sum is σ = 22563534. Its totient is φ = 22563532.

The previous prime is 22563521. The next prime is 22563551. The reversal of 22563533 is 33536522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19166884 + 3396649 = 4378^2 + 1843^2 .

It is a cyclic number.

It is not a de Polignac number, because 22563533 - 2¹² = 22559437 is a prime.

It is a super-2 number, since 2×22563533² = 1018226042884178, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22563496 and 22563505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22563503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11281766 + 11281767.

It is an arithmetic number, because the mean of its divisors is an integer number (11281767).

Almost surely, 2^22563533 is an apocalyptic number.

It is an amenable number.

22563533 is a deficient number, since it is larger than the sum of its proper divisors (1).

22563533 is an equidigital number, since it uses as much as digits as its factorization.

22563533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 29.

The square root of 22563533 is about 4750.1087355975. The cubic root of 22563533 is about 282.5762782509.

The spelling of 22563533 in words is "twenty-two million, five hundred sixty-three thousand, five hundred thirty-three".