52171224 has 64 divisors (see below), whose sum is σ = 149610240. Its totient is φ = 14851200.

The previous prime is 52171201. The next prime is 52171237. The reversal of 52171224 is 42217125.

It is a super-2 number, since 2×52171224² = 5443673227316352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 52171194 and 52171203.

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 in 15 ways as a sum of consecutive naturals, for example, 74074 + ... + 74774.

It is an arithmetic number, because the mean of its divisors is an integer number (2337660).

Almost surely, 2^52171224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52171224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74805120).

52171224 is an abundant number, since it is smaller than the sum of its proper divisors (97439016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52171224 is a wasteful number, since it uses less digits than its factorization.

52171224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160 (or 1156 counting only the distinct ones).

The product of its digits is 1120, while the sum is 24.

The square root of 52171224 is about 7222.9650421416. The cubic root of 52171224 is about 373.6603434420.

Adding to 52171224 its reverse (42217125), we get a palindrome (94388349).

It can be divided in two parts, 5217 and 1224, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 52171224 in words is "fifty-two million, one hundred seventy-one thousand, two hundred twenty-four".