255128726 has 8 divisors (see below), whose sum is σ = 383582304. Its totient is φ = 127267960.

The previous prime is 255128723. The next prime is 255128743. The reversal of 255128726 is 627821552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 255128726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255128723) 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, 147125 + ... + 148848.

It is an arithmetic number, because the mean of its divisors is an integer number (47947788).

Almost surely, 2^255128726 is an apocalyptic number.

255128726 is a deficient number, since it is larger than the sum of its proper divisors (128453578).

255128726 is a wasteful number, since it uses less digits than its factorization.

255128726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296406.

The product of its digits is 67200, while the sum is 38.

The square root of 255128726 is about 15972.7494815389. The cubic root of 255128726 is about 634.2392576201.

The spelling of 255128726 in words is "two hundred fifty-five million, one hundred twenty-eight thousand, seven hundred twenty-six".