255530533 has 4 divisors (see below), whose sum is σ = 255563308. Its totient is φ = 255497760.

The previous prime is 255530501. The next prime is 255530549. The reversal of 255530533 is 335035552.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 170485249 + 85045284 = 13057^2 + 9222^2 .

It is a cyclic number.

It is not a de Polignac number, because 255530533 - 2⁵ = 255530501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255530495 and 255530504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255530333) 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, 2785 + ... + 22777.

It is an arithmetic number, because the mean of its divisors is an integer number (63890827).

Almost surely, 2^255530533 is an apocalyptic number.

It is an amenable number.

255530533 is a deficient number, since it is larger than the sum of its proper divisors (32775).

255530533 is a wasteful number, since it uses less digits than its factorization.

255530533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32774.

The product of its (nonzero) digits is 33750, while the sum is 31.

The square root of 255530533 is about 15985.3224240239. The cubic root of 255530533 is about 634.5720413999.

The spelling of 255530533 in words is "two hundred fifty-five million, five hundred thirty thousand, five hundred thirty-three".