53553689 has 16 divisors (see below), whose sum is σ = 66561408. Its totient is φ = 42031872.

The previous prime is 53553679. The next prime is 53553733. The reversal of 53553689 is 98635535.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53553689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53553629) by changing a digit.

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, 1679 + ... + 10484.

It is an arithmetic number, because the mean of its divisors is an integer number (4160088).

Almost surely, 2^53553689 is an apocalyptic number.

It is an amenable number.

53553689 is a deficient number, since it is larger than the sum of its proper divisors (13007719).

53553689 is a wasteful number, since it uses less digits than its factorization.

53553689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12224.

The product of its digits is 486000, while the sum is 44.

The square root of 53553689 is about 7318.0386033417. The cubic root of 53553689 is about 376.9321057791.

The spelling of 53553689 in words is "fifty-three million, five hundred fifty-three thousand, six hundred eighty-nine".