53659871 has 4 divisors (see below), whose sum is σ = 56816352. Its totient is φ = 50503392.

The previous prime is 53659867. The next prime is 53659877. The reversal of 53659871 is 17895635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17895635 = 5 ⋅3579127.

It is a cyclic number.

It is not a de Polignac number, because 53659871 - 2² = 53659867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53659877) 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, 1578215 + ... + 1578248.

It is an arithmetic number, because the mean of its divisors is an integer number (14204088).

Almost surely, 2^53659871 is an apocalyptic number.

53659871 is a deficient number, since it is larger than the sum of its proper divisors (3156481).

53659871 is a wasteful number, since it uses less digits than its factorization.

53659871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156480.

The product of its digits is 226800, while the sum is 44.

The square root of 53659871 is about 7325.2898236179. The cubic root of 53659871 is about 377.1810583284.

The spelling of 53659871 in words is "fifty-three million, six hundred fifty-nine thousand, eight hundred seventy-one".