23555393 has 2 divisors, whose sum is σ = 23555394. Its totient is φ = 23555392.

The previous prime is 23555377. The next prime is 23555417. The reversal of 23555393 is 39355532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17833729 + 5721664 = 4223^2 + 2392^2 .

It is a cyclic number.

It is not a de Polignac number, because 23555393 - 2⁴ = 23555377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23555593) 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, 11777696 + 11777697.

It is an arithmetic number, because the mean of its divisors is an integer number (11777697).

Almost surely, 2^23555393 is an apocalyptic number.

It is an amenable number.

23555393 is a deficient number, since it is larger than the sum of its proper divisors (1).

23555393 is an equidigital number, since it uses as much as digits as its factorization.

23555393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60750, while the sum is 35.

The square root of 23555393 is about 4853.3898462827. The cubic root of 23555393 is about 286.6575940582.

The spelling of 23555393 in words is "twenty-three million, five hundred fifty-five thousand, three hundred ninety-three".