255043237 has 2 divisors, whose sum is σ = 255043238. Its totient is φ = 255043236.

The previous prime is 255043223. The next prime is 255043241. The reversal of 255043237 is 732340552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197374401 + 57668836 = 14049^2 + 7594^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255043237 is a prime.

It is equal to p_13940068 and since 255043237 and 13940068 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 255043199 and 255043208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255043207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127521618 + 127521619.

It is an arithmetic number, because the mean of its divisors is an integer number (127521619).

Almost surely, 2^255043237 is an apocalyptic number.

It is an amenable number.

255043237 is a deficient number, since it is larger than the sum of its proper divisors (1).

255043237 is an equidigital number, since it uses as much as digits as its factorization.

255043237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 255043237 is about 15970.0731682732. The cubic root of 255043237 is about 634.1684090228.

Adding to 255043237 its reverse (732340552), we get a palindrome (987383789).

The spelling of 255043237 in words is "two hundred fifty-five million, forty-three thousand, two hundred thirty-seven".