52207272 has 144 divisors (see below), whose sum is σ = 162593340. Its totient is φ = 15040512.

The previous prime is 52207213. The next prime is 52207273. The reversal of 52207272 is 27270225.

It is a happy number.

52207272 is a `hidden beast` number, since 522 + 0 + 72 + 72 = 666.

52207272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 24265476 + 27941796 = 4926^2 + 5286^2 .

It is not an unprimeable number, because it can be changed into a prime (52207273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 270408 + ... + 270600.

Almost surely, 2^52207272 is an apocalyptic number.

52207272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52207272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81296670).

52207272 is an abundant number, since it is smaller than the sum of its proper divisors (110386068).

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

52207272 is a wasteful number, since it uses less digits than its factorization.

52207272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 52207272 is about 7225.4599853573. The cubic root of 52207272 is about 373.7463845319.

Adding to 52207272 its reverse (27270225), we get a palindrome (79477497).

The spelling of 52207272 in words is "fifty-two million, two hundred seven thousand, two hundred seventy-two".