65993256 has 96 divisors (see below), whose sum is σ = 213183360. Its totient is φ = 18032256.

The previous prime is 65993219. The next prime is 65993281. The reversal of 65993256 is 65239956.

65993256 is a `hidden beast` number, since 6 + 599 + 3 + 2 + 56 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8746 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (2220660).

Almost surely, 2^65993256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65993256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106591680).

65993256 is an abundant number, since it is smaller than the sum of its proper divisors (147190104).

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

65993256 is a wasteful number, since it uses less digits than its factorization.

65993256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5735 (or 5728 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 65993256 is about 8123.6233295248. The cubic root of 65993256 is about 404.1102368849.

The spelling of 65993256 in words is "sixty-five million, nine hundred ninety-three thousand, two hundred fifty-six".