52171689 has 8 divisors (see below), whose sum is σ = 69621760. Its totient is φ = 34751376.

The previous prime is 52171687. The next prime is 52171703. The reversal of 52171689 is 98617125.

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

It is not a de Polignac number, because 52171689 - 2¹ = 52171687 is a prime.

It is a super-2 number, since 2×52171689² = 5443770266225442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52171681) 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, 2962 + ... + 10635.

It is an arithmetic number, because the mean of its divisors is an integer number (8702720).

Almost surely, 2^52171689 is an apocalyptic number.

It is an amenable number.

52171689 is a deficient number, since it is larger than the sum of its proper divisors (17450071).

52171689 is a wasteful number, since it uses less digits than its factorization.

52171689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14879.

The product of its digits is 30240, while the sum is 39.

The square root of 52171689 is about 7222.9972310669. The cubic root of 52171689 is about 373.6614535785.

The spelling of 52171689 in words is "fifty-two million, one hundred seventy-one thousand, six hundred eighty-nine".