52307272 has 8 divisors (see below), whose sum is σ = 98076150. Its totient is φ = 26153632.

The previous prime is 52307251. The next prime is 52307273. The reversal of 52307272 is 27270325.

It can be written as a sum of positive squares in only one way, i.e., 44275716 + 8031556 = 6654^2 + 2834^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 52307272.

It is not an unprimeable number, because it can be changed into a prime (52307273) 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 as a sum of consecutive naturals, namely, 3269197 + ... + 3269212.

Almost surely, 2^52307272 is an apocalyptic number.

It is an amenable number.

52307272 is a deficient number, since it is larger than the sum of its proper divisors (45768878).

52307272 is a wasteful number, since it uses less digits than its factorization.

52307272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538415 (or 6538411 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 52307272 is about 7232.3766494839. The cubic root of 52307272 is about 373.9848621705.

Adding to 52307272 its reverse (27270325), we get a palindrome (79577597).

The spelling of 52307272 in words is "fifty-two million, three hundred seven thousand, two hundred seventy-two".