5266321 has 8 divisors (see below), whose sum is σ = 5437800. Its totient is φ = 5096448.

The previous prime is 5266319. The next prime is 5266337. The reversal of 5266321 is 1236625.

It can be written as a sum of positive squares in 4 ways, for example, as 810000 + 4456321 = 900^2 + 2111^2 .

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 5266321 - 2¹ = 5266319 is a prime.

It is a d-powerful number, because it can be written as 5⁶ + 2²⁰ + 6² + 6⁵ + 3 + 2²² + 1 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5266301) 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, 11505 + ... + 11953.

It is an arithmetic number, because the mean of its divisors is an integer number (679725).

Almost surely, 2^5266321 is an apocalyptic number.

It is an amenable number.

5266321 is a deficient number, since it is larger than the sum of its proper divisors (171479).

5266321 is a wasteful number, since it uses less digits than its factorization.

5266321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its digits is 2160, while the sum is 25.

The square root of 5266321 is about 2294.8466179682. The cubic root of 5266321 is about 173.9812482545.

The spelling of 5266321 in words is "five million, two hundred sixty-six thousand, three hundred twenty-one".