23551291 has 2 divisors, whose sum is σ = 23551292. Its totient is φ = 23551290.

The previous prime is 23551249. The next prime is 23551313. The reversal of 23551291 is 19215532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23551291 - 2⁷ = 23551163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23551201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11775645 + 11775646.

It is an arithmetic number, because the mean of its divisors is an integer number (11775646).

Almost surely, 2^23551291 is an apocalyptic number.

23551291 is a deficient number, since it is larger than the sum of its proper divisors (1).

23551291 is an equidigital number, since it uses as much as digits as its factorization.

23551291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 28.

The square root of 23551291 is about 4852.9672366502. The cubic root of 23551291 is about 286.6409533153.

The spelling of 23551291 in words is "twenty-three million, five hundred fifty-one thousand, two hundred ninety-one".