255188471 has 2 divisors, whose sum is σ = 255188472. Its totient is φ = 255188470.

The previous prime is 255188467. The next prime is 255188477. The reversal of 255188471 is 174881552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255188471 - 2² = 255188467 is a prime.

It is a super-3 number, since 3×255188471³ (a number of 26 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255188477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127594235 + 127594236.

It is an arithmetic number, because the mean of its divisors is an integer number (127594236).

Almost surely, 2^255188471 is an apocalyptic number.

255188471 is a deficient number, since it is larger than the sum of its proper divisors (1).

255188471 is an equidigital number, since it uses as much as digits as its factorization.

255188471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89600, while the sum is 41.

The square root of 255188471 is about 15974.6195885849. The cubic root of 255188471 is about 634.2887616065.

The spelling of 255188471 in words is "two hundred fifty-five million, one hundred eighty-eight thousand, four hundred seventy-one".