64835505 has 128 divisors (see below), whose sum is σ = 145612800. Its totient is φ = 26687232.

The previous prime is 64835423. The next prime is 64835531. The reversal of 64835505 is 50553846.

64835505 is a `hidden beast` number, since 648 + 3 + 5 + 5 + 0 + 5 = 666.

It is not a de Polignac number, because 64835505 - 2⁸ = 64835249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64835505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 412887 + ... + 413043.

It is an arithmetic number, because the mean of its divisors is an integer number (1137600).

Almost surely, 2^64835505 is an apocalyptic number.

It is an amenable number.

64835505 is an abundant number, since it is smaller than the sum of its proper divisors (80777295).

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

64835505 is a wasteful number, since it uses less digits than its factorization.

64835505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The square root of 64835505 is about 8052.0497390416. The cubic root of 64835505 is about 401.7331153493.

The spelling of 64835505 in words is "sixty-four million, eight hundred thirty-five thousand, five hundred five".