5355421 has 2 divisors, whose sum is σ = 5355422. Its totient is φ = 5355420.

The previous prime is 5355419. The next prime is 5355431. The reversal of 5355421 is 1245535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5336100 + 19321 = 2310^2 + 139^2 .

It is a cyclic number.

It is not a de Polignac number, because 5355421 - 2¹ = 5355419 is a prime.

Together with 5355419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5355431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2677710 + 2677711.

It is an arithmetic number, because the mean of its divisors is an integer number (2677711).

Almost surely, 2^5355421 is an apocalyptic number.

It is an amenable number.

5355421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5355421 is an equidigital number, since it uses as much as digits as its factorization.

5355421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 25.

The square root of 5355421 is about 2314.1782558826. The cubic root of 5355421 is about 174.9569526772.

It can be divided in two parts, 5355 and 421, that added together give a square (5776 = 76²).

The spelling of 5355421 in words is "five million, three hundred fifty-five thousand, four hundred twenty-one".