53171881 has 8 divisors (see below), whose sum is σ = 60816704. Its totient is φ = 45539280.

The previous prime is 53171857. The next prime is 53171887. The reversal of 53171881 is 18817135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53171881 - 2¹¹ = 53169833 is a prime.

It is a super-2 number, since 2×53171881² = 5654497858156322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53171887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10006 + ... + 14368.

It is an arithmetic number, because the mean of its divisors is an integer number (7602088).

Almost surely, 2^53171881 is an apocalyptic number.

It is an amenable number.

53171881 is a deficient number, since it is larger than the sum of its proper divisors (7644823).

53171881 is a wasteful number, since it uses less digits than its factorization.

53171881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111.

The product of its digits is 6720, while the sum is 34.

The square root of 53171881 is about 7291.9051694327. The cubic root of 53171881 is about 376.0341964711.

The spelling of 53171881 in words is "fifty-three million, one hundred seventy-one thousand, eight hundred eighty-one".