52535543509 has 2 divisors, whose sum is σ = 52535543510. Its totient is φ = 52535543508.

The previous prime is 52535543491. The next prime is 52535543521. The reversal of 52535543509 is 90534553525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38647628100 + 13887915409 = 196590^2 + 117847^2 .

It is a cyclic number.

It is not a de Polignac number, because 52535543509 - 2¹³ = 52535535317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52535543569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26267771754 + 26267771755.

It is an arithmetic number, because the mean of its divisors is an integer number (26267771755).

Almost surely, 2^52535543509 is an apocalyptic number.

It is an amenable number.

52535543509 is a deficient number, since it is larger than the sum of its proper divisors (1).

52535543509 is an equidigital number, since it uses as much as digits as its factorization.

52535543509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2025000, while the sum is 46.

The spelling of 52535543509 in words is "fifty-two billion, five hundred thirty-five million, five hundred forty-three thousand, five hundred nine".