65063520 has 96 divisors (see below), whose sum is σ = 227737440. Its totient is φ = 17349120.

The previous prime is 65063519. The next prime is 65063533. The reversal of 65063520 is 2536056.

65063520 is a `hidden beast` number, since 6 + 5 + 0 + 635 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3211 + ... + 11850.

It is an arithmetic number, because the mean of its divisors is an integer number (2372265).

Almost surely, 2^65063520 is an apocalyptic number.

65063520 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 65063520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113868720).

65063520 is an abundant number, since it is smaller than the sum of its proper divisors (162673920).

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

65063520 is a wasteful number, since it uses less digits than its factorization.

65063520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15085 (or 15071 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 65063520 is about 8066.1961295272. The cubic root of 65063520 is about 402.2035057828.

Adding to 65063520 its reverse (2536056), we get a palindrome (67599576).

The spelling of 65063520 in words is "sixty-five million, sixty-three thousand, five hundred twenty".