52208172 has 24 divisors (see below), whose sum is σ = 135354800. Its totient is φ = 17402688.

The previous prime is 52208171. The next prime is 52208197. The reversal of 52208172 is 27180225.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52208171) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 241597 + ... + 241812.

Almost surely, 2^52208172 is an apocalyptic number.

It is an amenable number.

52208172 is an abundant number, since it is smaller than the sum of its proper divisors (83146628).

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

52208172 is a wasteful number, since it uses less digits than its factorization.

52208172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483422 (or 483414 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 52208172 is about 7225.5222648609. The cubic root of 52208172 is about 373.7485321881.

Adding to 52208172 its reverse (27180225), we get a palindrome (79388397).

The spelling of 52208172 in words is "fifty-two million, two hundred eight thousand, one hundred seventy-two".