53985718 has 4 divisors (see below), whose sum is σ = 80978580. Its totient is φ = 26992858.

The previous prime is 53985713. The next prime is 53985739. The reversal of 53985718 is 81758935.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53985713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13496428 + ... + 13496431.

It is an arithmetic number, because the mean of its divisors is an integer number (20244645).

Almost surely, 2^53985718 is an apocalyptic number.

53985718 is a deficient number, since it is larger than the sum of its proper divisors (26992862).

53985718 is a wasteful number, since it uses less digits than its factorization.

53985718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26992861.

The product of its digits is 302400, while the sum is 46.

The square root of 53985718 is about 7347.4973970734. The cubic root of 53985718 is about 377.9429894517.

The spelling of 53985718 in words is "fifty-three million, nine hundred eighty-five thousand, seven hundred eighteen".