5201421 has 8 divisors (see below), whose sum is σ = 7300320. Its totient is φ = 3285072.

The previous prime is 5201401. The next prime is 5201437. The reversal of 5201421 is 1241025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5201421 - 2⁷ = 5201293 is a prime.

5201421 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5201421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5201401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45570 + ... + 45683.

It is an arithmetic number, because the mean of its divisors is an integer number (912540).

Almost surely, 2^5201421 is an apocalyptic number.

It is an amenable number.

5201421 is a deficient number, since it is larger than the sum of its proper divisors (2098899).

5201421 is a wasteful number, since it uses less digits than its factorization.

5201421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91275.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 5201421 is about 2280.6624037766. The cubic root of 5201421 is about 173.2636007305.

Adding to 5201421 its reverse (1241025), we get a palindrome (6442446).

The spelling of 5201421 in words is "five million, two hundred one thousand, four hundred twenty-one".