53213235109 has 2 divisors, whose sum is σ = 53213235110. Its totient is φ = 53213235108.

The previous prime is 53213235107. The next prime is 53213235121. The reversal of 53213235109 is 90153231235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29644230625 + 23569004484 = 172175^2 + 153522^2 .

It is a cyclic number.

It is not a de Polignac number, because 53213235109 - 2¹ = 53213235107 is a prime.

Together with 53213235107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53213235107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606617554 + 26606617555.

It is an arithmetic number, because the mean of its divisors is an integer number (26606617555).

Almost surely, 2^53213235109 is an apocalyptic number.

It is an amenable number.

53213235109 is a deficient number, since it is larger than the sum of its proper divisors (1).

53213235109 is an equidigital number, since it uses as much as digits as its factorization.

53213235109 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 53213235109 in words is "fifty-three billion, two hundred thirteen million, two hundred thirty-five thousand, one hundred nine".