23305057 has 2 divisors, whose sum is σ = 23305058. Its totient is φ = 23305056.

The previous prime is 23305033. The next prime is 23305063. The reversal of 23305057 is 75050332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19368801 + 3936256 = 4401^2 + 1984^2 .

It is a cyclic number.

It is not a de Polignac number, because 23305057 - 2¹¹ = 23303009 is a prime.

It is not a weakly prime, because it can be changed into another prime (23305027) 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, 11652528 + 11652529.

It is an arithmetic number, because the mean of its divisors is an integer number (11652529).

Almost surely, 2^23305057 is an apocalyptic number.

It is an amenable number.

23305057 is a deficient number, since it is larger than the sum of its proper divisors (1).

23305057 is an equidigital number, since it uses as much as digits as its factorization.

23305057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 23305057 is about 4827.5311495629. The cubic root of 23305057 is about 285.6384864520.

Adding to 23305057 its reverse (75050332), we get a palindrome (98355389).

The spelling of 23305057 in words is "twenty-three million, three hundred five thousand, fifty-seven".