52171012172 has 24 divisors (see below), whose sum is σ = 94820402880. Its totient is φ = 25095312000.

The previous prime is 52171012163. The next prime is 52171012253. The reversal of 52171012172 is 27121017125.

It is a happy number.

It is a super-2 number, since 2×52171012172² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1967204 + ... + 1993547.

It is an arithmetic number, because the mean of its divisors is an integer number (3950850120).

Almost surely, 2^52171012172 is an apocalyptic number.

It is an amenable number.

52171012172 is a deficient number, since it is larger than the sum of its proper divisors (42649390708).

52171012172 is a wasteful number, since it uses less digits than its factorization.

52171012172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960881 (or 3960879 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 29.

Adding to 52171012172 its reverse (27121017125), we get a palindrome (79292029297).

The spelling of 52171012172 in words is "fifty-two billion, one hundred seventy-one million, twelve thousand, one hundred seventy-two".