65512393 has 8 divisors (see below), whose sum is σ = 67804160. Its totient is φ = 63231840.

The previous prime is 65512387. The next prime is 65512411. The reversal of 65512393 is 39321556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65512393 - 2⁹ = 65511881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65512333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10096 + ... + 15262.

It is an arithmetic number, because the mean of its divisors is an integer number (8475520).

Almost surely, 2^65512393 is an apocalyptic number.

It is an amenable number.

65512393 is a deficient number, since it is larger than the sum of its proper divisors (2291767).

65512393 is a wasteful number, since it uses less digits than its factorization.

65512393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607.

The product of its digits is 24300, while the sum is 34.

The square root of 65512393 is about 8093.9726340037. The cubic root of 65512393 is about 403.1263203931.

The spelling of 65512393 in words is "sixty-five million, five hundred twelve thousand, three hundred ninety-three".