223554257 has 2 divisors, whose sum is σ = 223554258. Its totient is φ = 223554256.

The previous prime is 223554229. The next prime is 223554269. The reversal of 223554257 is 752455322.

223554257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197093521 + 26460736 = 14039^2 + 5144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223554257 is a prime.

It is a Chen prime.

It is equal to p_12307769 and since 223554257 and 12307769 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (223554217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111777128 + 111777129.

It is an arithmetic number, because the mean of its divisors is an integer number (111777129).

Almost surely, 2^223554257 is an apocalyptic number.

It is an amenable number.

223554257 is a deficient number, since it is larger than the sum of its proper divisors (1).

223554257 is an equidigital number, since it uses as much as digits as its factorization.

223554257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84000, while the sum is 35.

The square root of 223554257 is about 14951.7309031430. The cubic root of 223554257 is about 606.9146880999.

The spelling of 223554257 in words is "two hundred twenty-three million, five hundred fifty-four thousand, two hundred fifty-seven".