53871568 has 10 divisors (see below), whose sum is σ = 104376194. Its totient is φ = 26935776.

The previous prime is 53871553. The next prime is 53871577. The reversal of 53871568 is 86517835.

It can be written as a sum of positive squares in only one way, i.e., 42928704 + 10942864 = 6552^2 + 3308^2 .

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 as a sum of consecutive naturals, namely, 1683471 + ... + 1683502.

Almost surely, 2^53871568 is an apocalyptic number.

It is an amenable number.

53871568 is a deficient number, since it is larger than the sum of its proper divisors (50504626).

53871568 is a wasteful number, since it uses less digits than its factorization.

53871568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366981 (or 3366975 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 53871568 is about 7339.7253354604. The cubic root of 53871568 is about 377.6764212004.

The spelling of 53871568 in words is "fifty-three million, eight hundred seventy-one thousand, five hundred sixty-eight".