65256912 has 120 divisors (see below), whose sum is σ = 213944640. Its totient is φ = 18178560.

The previous prime is 65256907. The next prime is 65256913. The reversal of 65256912 is 21965256.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65256913) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40539 + ... + 42117.

It is an arithmetic number, because the mean of its divisors is an integer number (1782872).

Almost surely, 2^65256912 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 65256912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106972320).

65256912 is an abundant number, since it is smaller than the sum of its proper divisors (148687728).

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

65256912 is a wasteful number, since it uses less digits than its factorization.

65256912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1632 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 65256912 is about 8078.1750414311. The cubic root of 65256912 is about 402.6016090578.

The spelling of 65256912 in words is "sixty-five million, two hundred fifty-six thousand, nine hundred twelve".