65513256 has 32 divisors (see below), whose sum is σ = 165628800. Its totient is φ = 21591680.

The previous prime is 65513243. The next prime is 65513267. The reversal of 65513256 is 65231556.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13200 + ... + 17471.

It is an arithmetic number, because the mean of its divisors is an integer number (5175900).

Almost surely, 2^65513256 is an apocalyptic number.

It is an amenable number.

65513256 is an abundant number, since it is smaller than the sum of its proper divisors (100115544).

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

65513256 is a wasteful number, since it uses less digits than its factorization.

65513256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30769 (or 30765 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 65513256 is about 8094.0259451030. The cubic root of 65513256 is about 403.1280905237.

The spelling of 65513256 in words is "sixty-five million, five hundred thirteen thousand, two hundred fifty-six".