255787933 has 16 divisors (see below), whose sum is σ = 275459184. Its totient is φ = 236666880.

The previous prime is 255787907. The next prime is 255787943. The reversal of 255787933 is 339787552.

It can be written as a sum of positive squares in 8 ways, for example, as 363609 + 255424324 = 603^2 + 15982^2 .

It is a cyclic number.

It is not a de Polignac number, because 255787933 - 2⁵ = 255787901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255787943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298041 + ... + 298897.

It is an arithmetic number, because the mean of its divisors is an integer number (17216199).

Almost surely, 2^255787933 is an apocalyptic number.

It is an amenable number.

255787933 is a deficient number, since it is larger than the sum of its proper divisors (19671251).

255787933 is a wasteful number, since it uses less digits than its factorization.

255787933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152.

The product of its digits is 1587600, while the sum is 49.

The square root of 255787933 is about 15993.3715332321. The cubic root of 255787933 is about 634.7850414245.

The spelling of 255787933 in words is "two hundred fifty-five million, seven hundred eighty-seven thousand, nine hundred thirty-three".