65500537 has 2 divisors, whose sum is σ = 65500538. Its totient is φ = 65500536.

The previous prime is 65500517. The next prime is 65500577. The reversal of 65500537 is 73500556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59043856 + 6456681 = 7684^2 + 2541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65500537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65500499 and 65500508.

It is not a weakly prime, because it can be changed into another prime (65500517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32750268 + 32750269.

It is an arithmetic number, because the mean of its divisors is an integer number (32750269).

Almost surely, 2^65500537 is an apocalyptic number.

It is an amenable number.

65500537 is a deficient number, since it is larger than the sum of its proper divisors (1).

65500537 is an equidigital number, since it uses as much as digits as its factorization.

65500537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 65500537 is about 8093.2402040221. The cubic root of 65500537 is about 403.1020005467.

The spelling of 65500537 in words is "sixty-five million, five hundred thousand, five hundred thirty-seven".