255030197 has 2 divisors, whose sum is σ = 255030198. Its totient is φ = 255030196.

The previous prime is 255030173. The next prime is 255030229. The reversal of 255030197 is 791030552.

It is an a-pointer prime, because the next prime (255030229) can be obtained adding 255030197 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254753521 + 276676 = 15961^2 + 526^2 .

It is a cyclic number.

It is not a de Polignac number, because 255030197 - 2¹⁸ = 254768053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255030137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127515098 + 127515099.

It is an arithmetic number, because the mean of its divisors is an integer number (127515099).

Almost surely, 2^255030197 is an apocalyptic number.

It is an amenable number.

255030197 is a deficient number, since it is larger than the sum of its proper divisors (1).

255030197 is an equidigital number, since it uses as much as digits as its factorization.

255030197 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 255030197 is about 15969.6648994273. The cubic root of 255030197 is about 634.1576007939.

The spelling of 255030197 in words is "two hundred fifty-five million, thirty thousand, one hundred ninety-seven".