255728072 has 16 divisors (see below), whose sum is σ = 479760000. Its totient is φ = 127792080.

The previous prime is 255728071. The next prime is 255728101. The reversal of 255728072 is 270827552.

It is not an unprimeable number, because it can be changed into a prime (255728071) 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, 7997 + ... + 23987.

It is an arithmetic number, because the mean of its divisors is an integer number (29985000).

Almost surely, 2^255728072 is an apocalyptic number.

It is a pronic number, being equal to 15991×15992.

It is an amenable number.

255728072 is a deficient number, since it is larger than the sum of its proper divisors (224031928).

255728072 is a wasteful number, since it uses less digits than its factorization.

255728072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17996 (or 17992 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 255728072 is about 15991.4999921833. The cubic root of 255728072 is about 634.7355188486.

The spelling of 255728072 in words is "two hundred fifty-five million, seven hundred twenty-eight thousand, seventy-two".