23040553 has 2 divisors, whose sum is σ = 23040554. Its totient is φ = 23040552.

The previous prime is 23040541. The next prime is 23040557. The reversal of 23040553 is 35504032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18558864 + 4481689 = 4308^2 + 2117^2 .

It is a cyclic number.

It is not a de Polignac number, because 23040553 - 2²¹ = 20943401 is a prime.

It is not a weakly prime, because it can be changed into another prime (23040557) 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, 11520276 + 11520277.

It is an arithmetic number, because the mean of its divisors is an integer number (11520277).

Almost surely, 2^23040553 is an apocalyptic number.

It is an amenable number.

23040553 is a deficient number, since it is larger than the sum of its proper divisors (1).

23040553 is an equidigital number, since it uses as much as digits as its factorization.

23040553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 23040553 is about 4800.0576038210. The cubic root of 23040553 is about 284.5537409174.

Adding to 23040553 its reverse (35504032), we get a palindrome (58544585).

The spelling of 23040553 in words is "twenty-three million, forty thousand, five hundred fifty-three".