255566535 has 16 divisors (see below), whose sum is σ = 467321856. Its totient is φ = 116830368.

The previous prime is 255566533. The next prime is 255566537. The reversal of 255566535 is 535665552.

It is an interprime number because it is at equal distance from previous prime (255566533) and next prime (255566537).

It is not a de Polignac number, because 255566535 - 2¹ = 255566533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255566533) 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, 1216879 + ... + 1217088.

It is an arithmetic number, because the mean of its divisors is an integer number (29207616).

Almost surely, 2^255566535 is an apocalyptic number.

255566535 is a deficient number, since it is larger than the sum of its proper divisors (211755321).

255566535 is a wasteful number, since it uses less digits than its factorization.

255566535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2433982.

The product of its digits is 675000, while the sum is 42.

The square root of 255566535 is about 15986.4484798845. The cubic root of 255566535 is about 634.6018418696.

The spelling of 255566535 in words is "two hundred fifty-five million, five hundred sixty-six thousand, five hundred thirty-five".