255304846729 has 3 divisors (see below), whose sum is σ = 255305352007. Its totient is φ = 255304341452.

The previous prime is 255304846723. The next prime is 255304846739. The reversal of 255304846729 is 927648403552.

It is a happy number.

The square root of 255304846729 is 505277.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 534303225 + 254770543504 = 23115^2 + 504748^2 .

It is not a de Polignac number, because 255304846729 - 2⁵ = 255304846697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255304846729.

It is not an unprimeable number, because it can be changed into a prime (255304846723) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 252639 + ... + 757915.

Almost surely, 2^255304846729 is an apocalyptic number.

255304846729 is the 505277-th square number.

255304846729 is the 252639-th centered octagonal number.

It is an amenable number.

255304846729 is a deficient number, since it is larger than the sum of its proper divisors (505278).

255304846729 is an frugal number, since it uses more digits than its factorization.

255304846729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010554 (or 505277 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 255304846729 in words is "two hundred fifty-five billion, three hundred four million, eight hundred forty-six thousand, seven hundred twenty-nine".