255566263 has 8 divisors (see below), whose sum is σ = 264751616. Its totient is φ = 246439800.

The previous prime is 255566261. The next prime is 255566273. The reversal of 255566263 is 362665552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255566263 - 2¹ = 255566261 is a prime.

It is a super-2 number, since 2×255566263² = 130628229567570338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255566261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5793 + ... + 23338.

It is an arithmetic number, because the mean of its divisors is an integer number (33093952).

Almost surely, 2^255566263 is an apocalyptic number.

255566263 is a deficient number, since it is larger than the sum of its proper divisors (9185353).

255566263 is a wasteful number, since it uses less digits than its factorization.

255566263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29445.

The product of its digits is 324000, while the sum is 40.

The square root of 255566263 is about 15986.4399726768. The cubic root of 255566263 is about 634.6016167335.

The spelling of 255566263 in words is "two hundred fifty-five million, five hundred sixty-six thousand, two hundred sixty-three".