53228389 has 2 divisors, whose sum is σ = 53228390. Its totient is φ = 53228388.

The previous prime is 53228387. The next prime is 53228419. The reversal of 53228389 is 98382235.

53228389 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., 45292900 + 7935489 = 6730^2 + 2817^2 .

It is a cyclic number.

It is not a de Polignac number, because 53228389 - 2¹ = 53228387 is a prime.

It is a super-2 number, since 2×53228389² = 5666522791070642, which contains 22 as substring.

Together with 53228387, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53228387) 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, 26614194 + 26614195.

It is an arithmetic number, because the mean of its divisors is an integer number (26614195).

Almost surely, 2^53228389 is an apocalyptic number.

It is an amenable number.

53228389 is a deficient number, since it is larger than the sum of its proper divisors (1).

53228389 is an equidigital number, since it uses as much as digits as its factorization.

53228389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 40.

The square root of 53228389 is about 7295.7788480737. The cubic root of 53228389 is about 376.1673584421.

The spelling of 53228389 in words is "fifty-three million, two hundred twenty-eight thousand, three hundred eighty-nine".