533256665 has 4 divisors (see below), whose sum is σ = 639908004. Its totient is φ = 426605328.

The previous prime is 533256643. The next prime is 533256671. The reversal of 533256665 is 566652335.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 566652335 = 5 ⋅113330467.

It can be written as a sum of positive squares in 2 ways, for example, as 382163401 + 151093264 = 19549^2 + 12292^2 .

It is a cyclic number.

It is not a de Polignac number, because 533256665 - 2⁶ = 533256601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53325662 + ... + 53325671.

It is an arithmetic number, because the mean of its divisors is an integer number (159977001).

Almost surely, 2^533256665 is an apocalyptic number.

It is an amenable number.

533256665 is a deficient number, since it is larger than the sum of its proper divisors (106651339).

533256665 is a wasteful number, since it uses less digits than its factorization.

533256665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106651338.

The product of its digits is 486000, while the sum is 41.

The square root of 533256665 is about 23092.3507898178. The cubic root of 533256665 is about 810.9214048568.

The spelling of 533256665 in words is "five hundred thirty-three million, two hundred fifty-six thousand, six hundred sixty-five".