5272321 has 2 divisors, whose sum is σ = 5272322. Its totient is φ = 5272320.

The previous prime is 5272307. The next prime is 5272327. The reversal of 5272321 is 1232725.

5272321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 541696 = 2175^2 + 736^2 .

It is a cyclic number.

It is not a de Polignac number, because 5272321 - 2¹¹ = 5270273 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 5272292 and 5272301.

It is not a weakly prime, because it can be changed into another prime (5272327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2636160 + 2636161.

It is an arithmetic number, because the mean of its divisors is an integer number (2636161).

Almost surely, 2^5272321 is an apocalyptic number.

It is an amenable number.

5272321 is a deficient number, since it is larger than the sum of its proper divisors (1).

5272321 is an equidigital number, since it uses as much as digits as its factorization.

5272321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 22.

The square root of 5272321 is about 2296.1535227419. The cubic root of 5272321 is about 174.0472963426.

The spelling of 5272321 in words is "five million, two hundred seventy-two thousand, three hundred twenty-one".