53805646 has 32 divisors (see below), whose sum is σ = 89579520. Its totient is φ = 24124800.

The previous prime is 53805637. The next prime is 53805667. The reversal of 53805646 is 64650835.

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, 74475 + ... + 75193.

It is an arithmetic number, because the mean of its divisors is an integer number (2799360).

Almost surely, 2^53805646 is an apocalyptic number.

53805646 is a deficient number, since it is larger than the sum of its proper divisors (35773874).

53805646 is a wasteful number, since it uses less digits than its factorization.

53805646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 53805646 is about 7335.2331932939. The cubic root of 53805646 is about 377.5223055984.

It can be divided in two parts, 5380 and 5646, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 53805646 in words is "fifty-three million, eight hundred five thousand, six hundred forty-six".