53328109 has 2 divisors, whose sum is σ = 53328110. Its totient is φ = 53328108.

The previous prime is 53328089. The next prime is 53328139. The reversal of 53328109 is 90182335.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46199209 + 7128900 = 6797^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 53328109 - 2⁹ = 53327597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53328139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26664054 + 26664055.

It is an arithmetic number, because the mean of its divisors is an integer number (26664055).

Almost surely, 2^53328109 is an apocalyptic number.

It is an amenable number.

53328109 is a deficient number, since it is larger than the sum of its proper divisors (1).

53328109 is an equidigital number, since it uses as much as digits as its factorization.

53328109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 53328109 is about 7302.6097389906. The cubic root of 53328109 is about 376.4021204363.

The spelling of 53328109 in words is "fifty-three million, three hundred twenty-eight thousand, one hundred nine".