23616251 has 2 divisors, whose sum is σ = 23616252. Its totient is φ = 23616250.

The previous prime is 23616191. The next prime is 23616269. The reversal of 23616251 is 15261632.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23616251 is a prime.

It is a super-2 number, since 2×23616251² = 1115454622590002, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23616251.

It is not a weakly prime, because it can be changed into another prime (23616851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11808125 + 11808126.

It is an arithmetic number, because the mean of its divisors is an integer number (11808126).

Almost surely, 2^23616251 is an apocalyptic number.

23616251 is a deficient number, since it is larger than the sum of its proper divisors (1).

23616251 is an equidigital number, since it uses as much as digits as its factorization.

23616251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 23616251 is about 4859.6554404608. The cubic root of 23616251 is about 286.9042524395.

Adding to 23616251 its reverse (15261632), we get a palindrome (38877883).

The spelling of 23616251 in words is "twenty-three million, six hundred sixteen thousand, two hundred fifty-one".