23516513 has 2 divisors, whose sum is σ = 23516514. Its totient is φ = 23516512.

The previous prime is 23516503. The next prime is 23516527. The reversal of 23516513 is 31561532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23493409 + 23104 = 4847^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 23516513 - 2⁸ = 23516257 is a prime.

It is not a weakly prime, because it can be changed into another prime (23516503) 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, 11758256 + 11758257.

It is an arithmetic number, because the mean of its divisors is an integer number (11758257).

Almost surely, 2^23516513 is an apocalyptic number.

It is an amenable number.

23516513 is a deficient number, since it is larger than the sum of its proper divisors (1).

23516513 is an equidigital number, since it uses as much as digits as its factorization.

23516513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 26.

The square root of 23516513 is about 4849.3827442263. The cubic root of 23516513 is about 286.4997903524.

The spelling of 23516513 in words is "twenty-three million, five hundred sixteen thousand, five hundred thirteen".