10533865 has 4 divisors (see below), whose sum is σ = 12640644. Its totient is φ = 8427088.

The previous prime is 10533857. The next prime is 10533871. The reversal of 10533865 is 56833501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4541161 + 5992704 = 2131^2 + 2448^2 .

It is a cyclic number.

It is not a de Polignac number, because 10533865 - 2³ = 10533857 is a prime.

It is a super-2 number, since 2×10533865² = 221924623676450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053382 + ... + 1053391.

It is an arithmetic number, because the mean of its divisors is an integer number (3160161).

Almost surely, 2^10533865 is an apocalyptic number.

It is an amenable number.

10533865 is a deficient number, since it is larger than the sum of its proper divisors (2106779).

10533865 is an equidigital number, since it uses as much as digits as its factorization.

10533865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106778.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 10533865 is about 3245.5916255746. The cubic root of 10533865 is about 219.2111208883.

The spelling of 10533865 in words is "ten million, five hundred thirty-three thousand, eight hundred sixty-five".