65073537 has 20 divisors (see below), whose sum is σ = 102327280. Its totient is φ = 41098104.

The previous prime is 65073527. The next prime is 65073539. The reversal of 65073537 is 73537056.

65073537 is a `hidden beast` number, since 6 + 50 + 73 + 537 = 666.

It is not a de Polignac number, because 65073537 - 2²² = 60879233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65073539) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19603 + ... + 22680.

It is an arithmetic number, because the mean of its divisors is an integer number (5116364).

Almost surely, 2^65073537 is an apocalyptic number.

It is an amenable number.

65073537 is a deficient number, since it is larger than the sum of its proper divisors (37253743).

65073537 is a wasteful number, since it uses less digits than its factorization.

65073537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42314 (or 42305 counting only the distinct ones).

The product of its (nonzero) digits is 66150, while the sum is 36.

The square root of 65073537 is about 8066.8170302790. The cubic root of 65073537 is about 402.2241454376.

The spelling of 65073537 in words is "sixty-five million, seventy-three thousand, five hundred thirty-seven".