23503573 has 2 divisors, whose sum is σ = 23503574. Its totient is φ = 23503572.

The previous prime is 23503567. The next prime is 23503577. The reversal of 23503573 is 37530532.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13410244 + 10093329 = 3662^2 + 3177^2 .

It is a cyclic number.

It is not a de Polignac number, because 23503573 - 2⁵ = 23503541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23503577) 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, 11751786 + 11751787.

It is an arithmetic number, because the mean of its divisors is an integer number (11751787).

Almost surely, 2^23503573 is an apocalyptic number.

It is an amenable number.

23503573 is a deficient number, since it is larger than the sum of its proper divisors (1).

23503573 is an equidigital number, since it uses as much as digits as its factorization.

23503573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9450, while the sum is 28.

The square root of 23503573 is about 4848.0483702207. The cubic root of 23503573 is about 286.4472317173.

The spelling of 23503573 in words is "twenty-three million, five hundred three thousand, five hundred seventy-three".