65450272 has 48 divisors (see below), whose sum is σ = 142394112. Its totient is φ = 29455360.

The previous prime is 65450233. The next prime is 65450291. The reversal of 65450272 is 27205456.

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, 9897 + ... + 15127.

It is an arithmetic number, because the mean of its divisors is an integer number (2966544).

Almost surely, 2^65450272 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 65450272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71197056).

65450272 is an abundant number, since it is smaller than the sum of its proper divisors (76943840).

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

65450272 is a wasteful number, since it uses less digits than its factorization.

65450272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5281 (or 5273 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 65450272 is about 8090.1342386885. The cubic root of 65450272 is about 402.9988608973.

The spelling of 65450272 in words is "sixty-five million, four hundred fifty thousand, two hundred seventy-two".