65512992 has 24 divisors (see below), whose sum is σ = 171971856. Its totient is φ = 21837632.

The previous prime is 65512991. The next prime is 65512999. The reversal of 65512992 is 29921556.

65512992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 65512992.

It is not an unprimeable number, because it can be changed into a prime (65512991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 341118 + ... + 341309.

It is an arithmetic number, because the mean of its divisors is an integer number (7165494).

Almost surely, 2^65512992 is an apocalyptic number.

It is an amenable number.

65512992 is an abundant number, since it is smaller than the sum of its proper divisors (106458864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65512992 is a wasteful number, since it uses less digits than its factorization.

65512992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682440 (or 682432 counting only the distinct ones).

The product of its digits is 48600, while the sum is 39.

The square root of 65512992 is about 8094.0096367622. The cubic root of 65512992 is about 403.1275490254.

The spelling of 65512992 in words is "sixty-five million, five hundred twelve thousand, nine hundred ninety-two".