73535513 has 2 divisors, whose sum is σ = 73535514. Its totient is φ = 73535512.

The previous prime is 73535507. The next prime is 73535521. The reversal of 73535513 is 31553537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49603849 + 23931664 = 7043^2 + 4892^2 .

It is a cyclic number.

It is not a de Polignac number, because 73535513 - 2⁸ = 73535257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73535513.

It is not a weakly prime, because it can be changed into another prime (73535533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36767756 + 36767757.

It is an arithmetic number, because the mean of its divisors is an integer number (36767757).

Almost surely, 2^73535513 is an apocalyptic number.

It is an amenable number.

73535513 is a deficient number, since it is larger than the sum of its proper divisors (1).

73535513 is an equidigital number, since it uses as much as digits as its factorization.

73535513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23625, while the sum is 32.

The square root of 73535513 is about 8575.2850098408. The cubic root of 73535513 is about 418.9533899315.

The spelling of 73535513 in words is "seventy-three million, five hundred thirty-five thousand, five hundred thirteen".