255774728 has 32 divisors (see below), whose sum is σ = 535943520. Its totient is φ = 113424000.

The previous prime is 255774703. The next prime is 255774733. The reversal of 255774728 is 827477552.

It is a super-2 number, since 2×255774728² = 130841422966947968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31838 + ... + 39053.

It is an arithmetic number, because the mean of its divisors is an integer number (16748235).

Almost surely, 2^255774728 is an apocalyptic number.

It is an amenable number.

255774728 is an abundant number, since it is smaller than the sum of its proper divisors (280168792).

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

255774728 is a wasteful number, since it uses less digits than its factorization.

255774728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70949 (or 70945 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 47.

The square root of 255774728 is about 15992.9587006282. The cubic root of 255774728 is about 634.7741176870.

The spelling of 255774728 in words is "two hundred fifty-five million, seven hundred seventy-four thousand, seven hundred twenty-eight".