255813756 has 96 divisors (see below), whose sum is σ = 713422080. Its totient is φ = 70425600.

The previous prime is 255813737. The next prime is 255813757. The reversal of 255813756 is 657318552.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255813757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63111 + ... + 67041.

It is an arithmetic number, because the mean of its divisors is an integer number (7431480).

Almost surely, 2^255813756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255813756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356711040).

255813756 is an abundant number, since it is smaller than the sum of its proper divisors (457608324).

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

255813756 is a wasteful number, since it uses less digits than its factorization.

255813756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995 (or 3993 counting only the distinct ones).

The product of its digits is 252000, while the sum is 42.

The square root of 255813756 is about 15994.1788160568. The cubic root of 255813756 is about 634.8064022218.

The spelling of 255813756 in words is "two hundred fifty-five million, eight hundred thirteen thousand, seven hundred fifty-six".