53705646 has 16 divisors (see below), whose sum is σ = 119346000. Its totient is φ = 17901864.

The previous prime is 53705627. The next prime is 53705683. The reversal of 53705646 is 64650735.

53705646 is a `hidden beast` number, since 5 + 3 + 7 + 0 + 5 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 53705646.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 497221 + ... + 497328.

It is an arithmetic number, because the mean of its divisors is an integer number (7459125).

Almost surely, 2^53705646 is an apocalyptic number.

53705646 is an abundant number, since it is smaller than the sum of its proper divisors (65640354).

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

53705646 is a wasteful number, since it uses less digits than its factorization.

53705646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994560 (or 994554 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 53705646 is about 7328.4136073232. The cubic root of 53705646 is about 377.2882803267.

The spelling of 53705646 in words is "fifty-three million, seven hundred five thousand, six hundred forty-six".