255755473 has 4 divisors (see below), whose sum is σ = 258629220. Its totient is φ = 252881728.

The previous prime is 255755449. The next prime is 255755477. The reversal of 255755473 is 374557552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109998144 + 145757329 = 10488^2 + 12073^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255755473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255755477) 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, 1436740 + ... + 1436917.

It is an arithmetic number, because the mean of its divisors is an integer number (64657305).

Almost surely, 2^255755473 is an apocalyptic number.

It is an amenable number.

255755473 is a deficient number, since it is larger than the sum of its proper divisors (2873747).

255755473 is an equidigital number, since it uses as much as digits as its factorization.

255755473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873746.

The product of its digits is 735000, while the sum is 43.

The square root of 255755473 is about 15992.3567056266. The cubic root of 255755473 is about 634.7581884584.

The spelling of 255755473 in words is "two hundred fifty-five million, seven hundred fifty-five thousand, four hundred seventy-three".