255736845 has 128 divisors (see below), whose sum is σ = 568673280. Its totient is φ = 107495424.

The previous prime is 255736843. The next prime is 255736879. The reversal of 255736845 is 548637552.

It is not a de Polignac number, because 255736845 - 2¹ = 255736843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 255736845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255736843) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 994957 + ... + 995213.

It is an arithmetic number, because the mean of its divisors is an integer number (4442760).

Almost surely, 2^255736845 is an apocalyptic number.

It is an amenable number.

255736845 is an abundant number, since it is smaller than the sum of its proper divisors (312936435).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255736845 is an equidigital number, since it uses as much as digits as its factorization.

255736845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 285 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 255736845 is about 15991.7742918039. The cubic root of 255736845 is about 634.7427771719.

The spelling of 255736845 in words is "two hundred fifty-five million, seven hundred thirty-six thousand, eight hundred forty-five".