53985616 has 20 divisors (see below), whose sum is σ = 105099424. Its totient is φ = 26863200.

The previous prime is 53985599. The next prime is 53985619. The reversal of 53985616 is 61658935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53985619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4620 + ... + 11371.

Almost surely, 2^53985616 is an apocalyptic number.

It is an amenable number.

53985616 is a deficient number, since it is larger than the sum of its proper divisors (51113808).

53985616 is a wasteful number, since it uses less digits than its factorization.

53985616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16210 (or 16204 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 53985616 is about 7347.4904559312. The cubic root of 53985616 is about 377.9427514245.

The spelling of 53985616 in words is "fifty-three million, nine hundred eighty-five thousand, six hundred sixteen".