65514240 has 324 divisors, whose sum is σ = 254453472. Its totient is φ = 15544320.

The previous prime is 65514233. The next prime is 65514313. The reversal of 65514240 is 4241556.

65514240 is a `hidden beast` number, since 655 + 1 + 4 + 2 + 4 + 0 = 666.

65514240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1393897 + ... + 1393943.

Almost surely, 2^65514240 is an apocalyptic number.

65514240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65514240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127226736).

65514240 is an abundant number, since it is smaller than the sum of its proper divisors (188939232).

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

65514240 is a wasteful number, since it uses less digits than its factorization.

65514240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 65514240 is about 8094.0867304471. The cubic root of 65514240 is about 403.1301088229.

Adding to 65514240 its reverse (4241556), we get a palindrome (69755796).

The spelling of 65514240 in words is "sixty-five million, five hundred fourteen thousand, two hundred forty".