65357505 has 24 divisors (see below), whose sum is σ = 114297768. Its totient is φ = 34546176.

The previous prime is 65357491. The next prime is 65357507. The reversal of 65357505 is 50575356.

65357505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1245456 + 64112049 = 1116^2 + 8007^2 .

It is not a de Polignac number, because 65357505 - 2⁸ = 65357249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65357505.

It is not an unprimeable number, because it can be changed into a prime (65357507) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1342 + ... + 11511.

It is an arithmetic number, because the mean of its divisors is an integer number (4762407).

Almost surely, 2^65357505 is an apocalyptic number.

It is an amenable number.

65357505 is a deficient number, since it is larger than the sum of its proper divisors (48940263).

65357505 is a wasteful number, since it uses less digits than its factorization.

65357505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12977 (or 12974 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 65357505 is about 8084.3988644797. The cubic root of 65357505 is about 402.8083718902.

The spelling of 65357505 in words is "sixty-five million, three hundred fifty-seven thousand, five hundred five".