255442963759 has 4 divisors (see below), whose sum is σ = 256127797816. Its totient is φ = 254758129704.

The previous prime is 255442963757. The next prime is 255442963771. The reversal of 255442963759 is 957369244552.

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 255442963759 - 2¹ = 255442963757 is a prime.

It is a super-2 number, since 2×255442963759² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255442963697 and 255442963706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255442963757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342416469 + ... + 342417214.

It is an arithmetic number, because the mean of its divisors is an integer number (64031949454).

Almost surely, 2^255442963759 is an apocalyptic number.

255442963759 is a deficient number, since it is larger than the sum of its proper divisors (684834057).

255442963759 is an equidigital number, since it uses as much as digits as its factorization.

255442963759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684834056.

The product of its digits is 81648000, while the sum is 61.

The spelling of 255442963759 in words is "two hundred fifty-five billion, four hundred forty-two million, nine hundred sixty-three thousand, seven hundred fifty-nine".