53112533209 has 2 divisors, whose sum is σ = 53112533210. Its totient is φ = 53112533208.

The previous prime is 53112533171. The next prime is 53112533231. The reversal of 53112533209 is 90233521135.

53112533209 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., 31587241984 + 21525291225 = 177728^2 + 146715^2 .

It is a cyclic number.

It is not a de Polignac number, because 53112533209 - 2¹¹ = 53112531161 is a prime.

It is not a weakly prime, because it can be changed into another prime (53112533239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26556266604 + 26556266605.

It is an arithmetic number, because the mean of its divisors is an integer number (26556266605).

Almost surely, 2^53112533209 is an apocalyptic number.

It is an amenable number.

53112533209 is a deficient number, since it is larger than the sum of its proper divisors (1).

53112533209 is an equidigital number, since it uses as much as digits as its factorization.

53112533209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 34.

The spelling of 53112533209 in words is "fifty-three billion, one hundred twelve million, five hundred thirty-three thousand, two hundred nine".