5266921 has 4 divisors (see below), whose sum is σ = 5745744. Its totient is φ = 4788100.

The previous prime is 5266909. The next prime is 5266927. The reversal of 5266921 is 1296625.

5266921 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5266921 - 2¹¹ = 5264873 is a prime.

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 not an unprimeable number, because it can be changed into a prime (5266927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239395 + ... + 239416.

It is an arithmetic number, because the mean of its divisors is an integer number (1436436).

Almost surely, 2^5266921 is an apocalyptic number.

It is an amenable number.

5266921 is a deficient number, since it is larger than the sum of its proper divisors (478823).

5266921 is a wasteful number, since it uses less digits than its factorization.

5266921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478822.

The product of its digits is 6480, while the sum is 31.

The square root of 5266921 is about 2294.9773419361. The cubic root of 5266921 is about 173.9878553201.

It can be divided in two parts, 526 and 6921, that added together give a palindrome (7447).

The spelling of 5266921 in words is "five million, two hundred sixty-six thousand, nine hundred twenty-one".