69536513 has 2 divisors, whose sum is σ = 69536514. Its totient is φ = 69536512.

The previous prime is 69536507. The next prime is 69536531. The reversal of 69536513 is 31563596.

Together with next prime (69536531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51955264 + 17581249 = 7208^2 + 4193^2 .

It is a cyclic number.

It is not a de Polignac number, because 69536513 - 2¹⁶ = 69470977 is a prime.

It is not a weakly prime, because it can be changed into another prime (69536563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34768256 + 34768257.

It is an arithmetic number, because the mean of its divisors is an integer number (34768257).

Almost surely, 2^69536513 is an apocalyptic number.

It is an amenable number.

69536513 is a deficient number, since it is larger than the sum of its proper divisors (1).

69536513 is an equidigital number, since it uses as much as digits as its factorization.

69536513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72900, while the sum is 38.

The square root of 69536513 is about 8338.8556169297. The cubic root of 69536513 is about 411.2169139718.

The spelling of 69536513 in words is "sixty-nine million, five hundred thirty-six thousand, five hundred thirteen".