53493688 has 8 divisors (see below), whose sum is σ = 100300680. Its totient is φ = 26746840.

The previous prime is 53493659. The next prime is 53493703. The reversal of 53493688 is 88639435.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3343348 + ... + 3343363.

It is an arithmetic number, because the mean of its divisors is an integer number (12537585).

Almost surely, 2^53493688 is an apocalyptic number.

It is an amenable number.

53493688 is a deficient number, since it is larger than the sum of its proper divisors (46806992).

53493688 is a wasteful number, since it uses less digits than its factorization.

53493688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6686717 (or 6686713 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 53493688 is about 7313.9379269994. The cubic root of 53493688 is about 376.7912828945.

The spelling of 53493688 in words is "fifty-three million, four hundred ninety-three thousand, six hundred eighty-eight".