255197633 has 2 divisors, whose sum is σ = 255197634. Its totient is φ = 255197632.

The previous prime is 255197567. The next prime is 255197669. The reversal of 255197633 is 336791552.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196644529 + 58553104 = 14023^2 + 7652^2 .

It is a cyclic number.

It is not a de Polignac number, because 255197633 - 2¹² = 255193537 is a prime.

It is not a weakly prime, because it can be changed into another prime (255197233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127598816 + 127598817.

It is an arithmetic number, because the mean of its divisors is an integer number (127598817).

Almost surely, 2^255197633 is an apocalyptic number.

It is an amenable number.

255197633 is a deficient number, since it is larger than the sum of its proper divisors (1).

255197633 is an equidigital number, since it uses as much as digits as its factorization.

255197633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 41.

The square root of 255197633 is about 15974.9063534031. The cubic root of 255197633 is about 634.2963524459.

The spelling of 255197633 in words is "two hundred fifty-five million, one hundred ninety-seven thousand, six hundred thirty-three".