255452819 has 2 divisors, whose sum is σ = 255452820. Its totient is φ = 255452818.

The previous prime is 255452801. The next prime is 255452867. The reversal of 255452819 is 918254552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255452819 - 2⁸ = 255452563 is a prime.

It is a super-2 number, since 2×255452819² = 130512285470093522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255652819) 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 as a sum of consecutive naturals, namely, 127726409 + 127726410.

It is an arithmetic number, because the mean of its divisors is an integer number (127726410).

Almost surely, 2^255452819 is an apocalyptic number.

255452819 is a deficient number, since it is larger than the sum of its proper divisors (1).

255452819 is an equidigital number, since it uses as much as digits as its factorization.

255452819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144000, while the sum is 41.

The square root of 255452819 is about 15982.8914467940. The cubic root of 255452819 is about 634.5077044936.

The spelling of 255452819 in words is "two hundred fifty-five million, four hundred fifty-two thousand, eight hundred nineteen".