5259421 has 2 divisors, whose sum is σ = 5259422. Its totient is φ = 5259420.

The previous prime is 5259413. The next prime is 5259427. The reversal of 5259421 is 1249525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4995225 + 264196 = 2235^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 5259421 - 2³ = 5259413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5259421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5259427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2629710 + 2629711.

It is an arithmetic number, because the mean of its divisors is an integer number (2629711).

Almost surely, 2^5259421 is an apocalyptic number.

It is an amenable number.

5259421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5259421 is an equidigital number, since it uses as much as digits as its factorization.

5259421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 5259421 is about 2293.3427567636. The cubic root of 5259421 is about 173.9052309054.

The spelling of 5259421 in words is "five million, two hundred fifty-nine thousand, four hundred twenty-one".