255163851 has 18 divisors (see below), whose sum is σ = 382736172. Its totient is φ = 170104860.

The previous prime is 255163823. The next prime is 255163871. The reversal of 255163851 is 158361552.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-255163851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255163871) by changing a digit.

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 in 17 ways as a sum of consecutive naturals, for example, 12885 + ... + 26006.

Almost surely, 2^255163851 is an apocalyptic number.

255163851 is a deficient number, since it is larger than the sum of its proper divisors (127572321).

255163851 is an frugal number, since it uses more digits than its factorization.

255163851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38915 (or 38894 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 255163851 is about 15973.8489726177. The cubic root of 255163851 is about 634.2683627075.

The spelling of 255163851 in words is "two hundred fifty-five million, one hundred sixty-three thousand, eight hundred fifty-one".