255743753 has 4 divisors (see below), whose sum is σ = 255874068. Its totient is φ = 255613440.

The previous prime is 255743731. The next prime is 255743783. The reversal of 255743753 is 357347552.

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 139901584 + 115842169 = 11828^2 + 10763^2 .

It is a cyclic number.

It is not a de Polignac number, because 255743753 - 2⁶ = 255743689 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 255743753.

It is not an unprimeable number, because it can be changed into a prime (255743713) 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, 62168 + ... + 66153.

It is an arithmetic number, because the mean of its divisors is an integer number (63968517).

Almost surely, 2^255743753 is an apocalyptic number.

It is an amenable number.

255743753 is a deficient number, since it is larger than the sum of its proper divisors (130315).

255743753 is a wasteful number, since it uses less digits than its factorization.

255743753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130314.

The product of its digits is 441000, while the sum is 41.

The square root of 255743753 is about 15991.9902763852. The cubic root of 255743753 is about 634.7484923745.

The spelling of 255743753 in words is "two hundred fifty-five million, seven hundred forty-three thousand, seven hundred fifty-three".