22506983 has 2 divisors, whose sum is σ = 22506984. Its totient is φ = 22506982.

The previous prime is 22506977. The next prime is 22507013. The reversal of 22506983 is 38960522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22506983 - 2⁸ = 22506727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22506973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11253491 + 11253492.

It is an arithmetic number, because the mean of its divisors is an integer number (11253492).

Almost surely, 2^22506983 is an apocalyptic number.

22506983 is a deficient number, since it is larger than the sum of its proper divisors (1).

22506983 is an equidigital number, since it uses as much as digits as its factorization.

22506983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 22506983 is about 4744.1525059804. The cubic root of 22506983 is about 282.3400112194.

The spelling of 22506983 in words is "twenty-two million, five hundred six thousand, nine hundred eighty-three".