65275712 has 42 divisors (see below), whose sum is σ = 132213858. Its totient is φ = 31975168.

The previous prime is 65275711. The next prime is 65275741. The reversal of 65275712 is 21757256.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64384576 + 891136 = 8024^2 + 944^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65275711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 222638 + ... + 222930.

It is an arithmetic number, because the mean of its divisors is an integer number (3147949).

Almost surely, 2^65275712 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 65275712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66106929).

65275712 is an abundant number, since it is smaller than the sum of its proper divisors (66938146).

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

65275712 is an equidigital number, since it uses as much as digits as its factorization.

65275712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 354 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 65275712 is about 8079.3385867904. The cubic root of 65275712 is about 402.6402674583.

The spelling of 65275712 in words is "sixty-five million, two hundred seventy-five thousand, seven hundred twelve".