255727755 has 12 divisors (see below), whose sum is σ = 443261520. Its totient is φ = 136388112.

The previous prime is 255727741. The next prime is 255727781. The reversal of 255727755 is 557727552.

255727755 is a `hidden beast` number, since 2 + 5 + 572 + 7 + 75 + 5 = 666.

It is not a de Polignac number, because 255727755 - 2⁴ = 255727739 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5682839 = 255727755 / (2 + 5 + 5 + 7 + 2 + 7 + 7 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 255727755.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2841375 + ... + 2841464.

It is an arithmetic number, because the mean of its divisors is an integer number (36938460).

Almost surely, 2^255727755 is an apocalyptic number.

255727755 is a deficient number, since it is larger than the sum of its proper divisors (187533765).

255727755 is a wasteful number, since it uses less digits than its factorization.

255727755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682850 (or 5682847 counting only the distinct ones).

The product of its digits is 857500, while the sum is 45.

The square root of 255727755 is about 15991.4900806648. The cubic root of 255727755 is about 634.7352565762.

The spelling of 255727755 in words is "two hundred fifty-five million, seven hundred twenty-seven thousand, seven hundred fifty-five".