52226172 has 18 divisors (see below), whose sum is σ = 132016248. Its totient is φ = 17408712.

The previous prime is 52226149. The next prime is 52226177. The reversal of 52226172 is 27162225.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52226177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 725328 + ... + 725399.

It is an arithmetic number, because the mean of its divisors is an integer number (7334236).

Almost surely, 2^52226172 is an apocalyptic number.

It is an amenable number.

52226172 is an abundant number, since it is smaller than the sum of its proper divisors (79790076).

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

52226172 is a wasteful number, since it uses less digits than its factorization.

52226172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450737 (or 1450732 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 52226172 is about 7226.7677422206. The cubic root of 52226172 is about 373.7914801298.

Adding to 52226172 its reverse (27162225), we get a palindrome (79388397).

The spelling of 52226172 in words is "fifty-two million, two hundred twenty-six thousand, one hundred seventy-two".