5026421 has 2 divisors, whose sum is σ = 5026422. Its totient is φ = 5026420.

The previous prime is 5026403. The next prime is 5026423. The reversal of 5026421 is 1246205.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4056196 + 970225 = 2014^2 + 985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5026421 is a prime.

Together with 5026423, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5026393 and 5026402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5026423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513210 + 2513211.

It is an arithmetic number, because the mean of its divisors is an integer number (2513211).

Almost surely, 2^5026421 is an apocalyptic number.

It is an amenable number.

5026421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5026421 is an equidigital number, since it uses as much as digits as its factorization.

5026421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 5026421 is about 2241.9681086046. The cubic root of 5026421 is about 171.2982608577.

The spelling of 5026421 in words is "five million, twenty-six thousand, four hundred twenty-one".