52365421 has 2 divisors, whose sum is σ = 52365422. Its totient is φ = 52365420.

The previous prime is 52365413. The next prime is 52365427. The reversal of 52365421 is 12456325.

52365421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51337225 + 1028196 = 7165^2 + 1014^2 .

It is a cyclic number.

It is not a de Polignac number, because 52365421 - 2³ = 52365413 is a prime.

It is equal to p_3134368 and since 52365421 and 3134368 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52365421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52365427) 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, 26182710 + 26182711.

It is an arithmetic number, because the mean of its divisors is an integer number (26182711).

Almost surely, 2^52365421 is an apocalyptic number.

It is an amenable number.

52365421 is a deficient number, since it is larger than the sum of its proper divisors (1).

52365421 is an equidigital number, since it uses as much as digits as its factorization.

52365421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 28.

The square root of 52365421 is about 7236.3955806741. The cubic root of 52365421 is about 374.1233948026.

The spelling of 52365421 in words is "fifty-two million, three hundred sixty-five thousand, four hundred twenty-one".