5266421 has 4 divisors (see below), whose sum is σ = 5320812. Its totient is φ = 5212032.

The previous prime is 5266381. The next prime is 5266423. The reversal of 5266421 is 1246625.

5266421 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.

It can be written as a sum of positive squares in 2 ways, for example, as 4363921 + 902500 = 2089^2 + 950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5266421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5266423) by changing a digit.

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, 27050 + ... + 27243.

It is an arithmetic number, because the mean of its divisors is an integer number (1330203).

Almost surely, 2^5266421 is an apocalyptic number.

It is an amenable number.

5266421 is a deficient number, since it is larger than the sum of its proper divisors (54391).

5266421 is an equidigital number, since it uses as much as digits as its factorization.

5266421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54390.

The product of its digits is 2880, while the sum is 26.

The square root of 5266421 is about 2294.8684058133. The cubic root of 5266421 is about 173.9823494669.

The spelling of 5266421 in words is "five million, two hundred sixty-six thousand, four hundred twenty-one".