255964612803 has 4 divisors (see below), whose sum is σ = 341286150408. Its totient is φ = 170643075200.

The previous prime is 255964612769. The next prime is 255964612819. The reversal of 255964612803 is 308216469552.

It is a happy number.

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 255964612803 - 2¹⁰ = 255964611779 is a prime.

It is a super-3 number, since 3×255964612803³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (255964612823) 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, 42660768798 + ... + 42660768803.

It is an arithmetic number, because the mean of its divisors is an integer number (85321537602).

Almost surely, 2^255964612803 is an apocalyptic number.

255964612803 is a deficient number, since it is larger than the sum of its proper divisors (85321537605).

255964612803 is an equidigital number, since it uses as much as digits as its factorization.

255964612803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85321537604.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 255964612803 in words is "two hundred fifty-five billion, nine hundred sixty-four million, six hundred twelve thousand, eight hundred three".