23505253 has 2 divisors, whose sum is σ = 23505254. Its totient is φ = 23505252.

The previous prime is 23505173. The next prime is 23505257. The reversal of 23505253 is 35250532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14493249 + 9012004 = 3807^2 + 3002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23505253 is a prime.

It is equal to p_1478023 and since 23505253 and 1478023 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 (23505257) 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, 11752626 + 11752627.

It is an arithmetic number, because the mean of its divisors is an integer number (11752627).

Almost surely, 2^23505253 is an apocalyptic number.

It is an amenable number.

23505253 is a deficient number, since it is larger than the sum of its proper divisors (1).

23505253 is an equidigital number, since it uses as much as digits as its factorization.

23505253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 23505253 is about 4848.2216327227. The cubic root of 23505253 is about 286.4540564936.

Adding to 23505253 its reverse (35250532), we get a palindrome (58755785).

The spelling of 23505253 in words is "twenty-three million, five hundred five thousand, two hundred fifty-three".