65853505 has 8 divisors (see below), whose sum is σ = 79069824. Its totient is φ = 52652400.

The previous prime is 65853497. The next prime is 65853521. The reversal of 65853505 is 50535856.

65853505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65853505 - 2³ = 65853497 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 10890 + ... + 15820.

It is an arithmetic number, because the mean of its divisors is an integer number (9883728).

Almost surely, 2^65853505 is an apocalyptic number.

It is an amenable number.

65853505 is a deficient number, since it is larger than the sum of its proper divisors (13216319).

65853505 is a wasteful number, since it uses less digits than its factorization.

65853505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7607.

The product of its (nonzero) digits is 90000, while the sum is 37.

The square root of 65853505 is about 8115.0172519841. The cubic root of 65853505 is about 403.8247798305.

The spelling of 65853505 in words is "sixty-five million, eight hundred fifty-three thousand, five hundred five".