52041421 has 2 divisors, whose sum is σ = 52041422. Its totient is φ = 52041420.

The previous prime is 52041419. The next prime is 52041427. The reversal of 52041421 is 12414025.

52041421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40386025 + 11655396 = 6355^2 + 3414^2 .

It is a cyclic number.

It is not a de Polignac number, because 52041421 - 2¹ = 52041419 is a prime.

Together with 52041419, 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 (52041427) 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 as a sum of consecutive naturals, namely, 26020710 + 26020711.

It is an arithmetic number, because the mean of its divisors is an integer number (26020711).

Almost surely, 2^52041421 is an apocalyptic number.

It is an amenable number.

52041421 is a deficient number, since it is larger than the sum of its proper divisors (1).

52041421 is an equidigital number, since it uses as much as digits as its factorization.

52041421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 52041421 is about 7213.9740088248. The cubic root of 52041421 is about 373.3501947281.

Adding to 52041421 its reverse (12414025), we get a palindrome (64455446).

The spelling of 52041421 in words is "fifty-two million, forty-one thousand, four hundred twenty-one".