53328943 has 2 divisors, whose sum is σ = 53328944. Its totient is φ = 53328942.

The previous prime is 53328917. The next prime is 53328967. The reversal of 53328943 is 34982335.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53328943 - 2²⁵ = 19774511 is a prime.

It is a super-2 number, since 2×53328943² = 5687952322994498, which contains 22 as substring.

It is equal to p_3188593 and since 53328943 and 3188593 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53328043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26664471 + 26664472.

It is an arithmetic number, because the mean of its divisors is an integer number (26664472).

Almost surely, 2^53328943 is an apocalyptic number.

53328943 is a deficient number, since it is larger than the sum of its proper divisors (1).

53328943 is an equidigital number, since it uses as much as digits as its factorization.

53328943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The square root of 53328943 is about 7302.6668416408. Note that the first 3 decimals coincide. The cubic root of 53328943 is about 376.4040826144.

The spelling of 53328943 in words is "fifty-three million, three hundred twenty-eight thousand, nine hundred forty-three".