5226421 has 2 divisors, whose sum is σ = 5226422. Its totient is φ = 5226420.

The previous prime is 5226391. The next prime is 5226433. The reversal of 5226421 is 1246225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5225796 + 625 = 2286^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 5226421 - 2¹³ = 5218229 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5226392 and 5226401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5226461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2613210 + 2613211.

It is an arithmetic number, because the mean of its divisors is an integer number (2613211).

Almost surely, 2^5226421 is an apocalyptic number.

It is an amenable number.

5226421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5226421 is an equidigital number, since it uses as much as digits as its factorization.

5226421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 5226421 is about 2286.1366975752. The cubic root of 5226421 is about 173.5407473497.

The spelling of 5226421 in words is "five million, two hundred twenty-six thousand, four hundred twenty-one".