5270821 has 2 divisors, whose sum is σ = 5270822. Its totient is φ = 5270820.

The previous prime is 5270807. The next prime is 5270843. The reversal of 5270821 is 1280725.

5270821 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4796100 + 474721 = 2190^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 5270821 - 2⁵ = 5270789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5270851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2635410 + 2635411.

It is an arithmetic number, because the mean of its divisors is an integer number (2635411).

Almost surely, 2^5270821 is an apocalyptic number.

It is an amenable number.

5270821 is a deficient number, since it is larger than the sum of its proper divisors (1).

5270821 is an equidigital number, since it uses as much as digits as its factorization.

5270821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 5270821 is about 2295.8268662946. The cubic root of 5270821 is about 174.0307890203.

The spelling of 5270821 in words is "five million, two hundred seventy thousand, eight hundred twenty-one".