255543166 has 4 divisors (see below), whose sum is σ = 383314752. Its totient is φ = 127771582.

The previous prime is 255543151. The next prime is 255543181. The reversal of 255543166 is 661345552.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (255543151) and next prime (255543181).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63885790 + ... + 63885793.

It is an arithmetic number, because the mean of its divisors is an integer number (95828688).

Almost surely, 2^255543166 is an apocalyptic number.

255543166 is a deficient number, since it is larger than the sum of its proper divisors (127771586).

255543166 is a wasteful number, since it uses less digits than its factorization.

255543166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127771585.

The product of its digits is 108000, while the sum is 37.

The square root of 255543166 is about 15985.7175628747. The cubic root of 255543166 is about 634.5824986192.

The spelling of 255543166 in words is "two hundred fifty-five million, five hundred forty-three thousand, one hundred sixty-six".