23256251 has 2 divisors, whose sum is σ = 23256252. Its totient is φ = 23256250.

The previous prime is 23256227. The next prime is 23256281. The reversal of 23256251 is 15265232.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23256251 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23256251.

It is not a weakly prime, because it can be changed into another prime (23256281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11628125 + 11628126.

It is an arithmetic number, because the mean of its divisors is an integer number (11628126).

Almost surely, 2^23256251 is an apocalyptic number.

23256251 is a deficient number, since it is larger than the sum of its proper divisors (1).

23256251 is an equidigital number, since it uses as much as digits as its factorization.

23256251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 23256251 is about 4822.4735354380. The cubic root of 23256251 is about 285.4389501442.

The spelling of 23256251 in words is "twenty-three million, two hundred fifty-six thousand, two hundred fifty-one".