65256944 has 40 divisors (see below), whose sum is σ = 134522640. Its totient is φ = 30578688.

The previous prime is 65256943. The next prime is 65256959. The reversal of 65256944 is 44965256.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65256941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28382 + ... + 30594.

It is an arithmetic number, because the mean of its divisors is an integer number (3363066).

Almost surely, 2^65256944 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 65256944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67261320).

65256944 is an abundant number, since it is smaller than the sum of its proper divisors (69265696).

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

65256944 is a wasteful number, since it uses less digits than its factorization.

65256944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337 (or 2331 counting only the distinct ones).

The product of its digits is 259200, while the sum is 41.

The square root of 65256944 is about 8078.1770220762. The cubic root of 65256944 is about 402.6016748656.

The spelling of 65256944 in words is "sixty-five million, two hundred fifty-six thousand, nine hundred forty-four".