255763873 has 4 divisors (see below), whose sum is σ = 255860928. Its totient is φ = 255666820.

The previous prime is 255763853. The next prime is 255763889. The reversal of 255763873 is 378367552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255763873 - 2¹³ = 255755681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255763853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44461 + ... + 49882.

It is an arithmetic number, because the mean of its divisors is an integer number (63965232).

Almost surely, 2^255763873 is an apocalyptic number.

It is an amenable number.

255763873 is a deficient number, since it is larger than the sum of its proper divisors (97055).

255763873 is an equidigital number, since it uses as much as digits as its factorization.

255763873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97054.

The product of its digits is 1058400, while the sum is 46.

The square root of 255763873 is about 15992.6193289280. The cubic root of 255763873 is about 634.7651376879.

It can be divided in two parts, 2557 and 63873, that added together give a triangular number (66430 = T₃₆₄).

The spelling of 255763873 in words is "two hundred fifty-five million, seven hundred sixty-three thousand, eight hundred seventy-three".