255709063 has 4 divisors (see below), whose sum is σ = 255786408. Its totient is φ = 255631720.

The previous prime is 255709007. The next prime is 255709067. The reversal of 255709063 is 360907552.

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

It is a cyclic number.

It is not a de Polignac number, because 255709063 - 2¹⁷ = 255577991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255709067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33481 + ... + 40402.

It is an arithmetic number, because the mean of its divisors is an integer number (63946602).

Almost surely, 2^255709063 is an apocalyptic number.

255709063 is a deficient number, since it is larger than the sum of its proper divisors (77345).

255709063 is an equidigital number, since it uses as much as digits as its factorization.

255709063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77344.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 255709063 is about 15990.9056341409. The cubic root of 255709063 is about 634.7197912226.

The spelling of 255709063 in words is "two hundred fifty-five million, seven hundred nine thousand, sixty-three".