23055917 has 2 divisors, whose sum is σ = 23055918. Its totient is φ = 23055916.

The previous prime is 23055881. The next prime is 23055943. The reversal of 23055917 is 71955032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 6295081 = 4094^2 + 2509^2 .

It is a cyclic number.

It is not a de Polignac number, because 23055917 - 2¹⁰ = 23054893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23055947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11527958 + 11527959.

It is an arithmetic number, because the mean of its divisors is an integer number (11527959).

Almost surely, 2^23055917 is an apocalyptic number.

It is an amenable number.

23055917 is a deficient number, since it is larger than the sum of its proper divisors (1).

23055917 is an equidigital number, since it uses as much as digits as its factorization.

23055917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 23055917 is about 4801.6577345746. The cubic root of 23055917 is about 284.6169759777.

The spelling of 23055917 in words is "twenty-three million, fifty-five thousand, nine hundred seventeen".