255162819 has 4 divisors (see below), whose sum is σ = 340217096. Its totient is φ = 170108544.

The previous prime is 255162797. The next prime is 255162839. The reversal of 255162819 is 918261552.

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

It is not a de Polignac number, because 255162819 - 2¹⁷ = 255031747 is a prime.

It is a super-2 number, since 2×255162819² = 130216128400053522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255162839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42527134 + ... + 42527139.

It is an arithmetic number, because the mean of its divisors is an integer number (85054274).

Almost surely, 2^255162819 is an apocalyptic number.

255162819 is a deficient number, since it is larger than the sum of its proper divisors (85054277).

255162819 is an equidigital number, since it uses as much as digits as its factorization.

255162819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85054276.

The product of its digits is 43200, while the sum is 39.

The square root of 255162819 is about 15973.8166697881. The cubic root of 255162819 is about 634.2675076154.

The spelling of 255162819 in words is "two hundred fifty-five million, one hundred sixty-two thousand, eight hundred nineteen".