52244642 has 18 divisors (see below), whose sum is σ = 83017233. Its totient is φ = 24655464.

The previous prime is 52244639. The next prime is 52244651. The reversal of 52244642 is 24644225.

It can be written as a sum of positive squares in 2 ways, for example, as 39075001 + 13169641 = 6251^2 + 3629^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5111.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 194084 + ... + 194352.

Almost surely, 2^52244642 is an apocalyptic number.

52244642 is a deficient number, since it is larger than the sum of its proper divisors (30772591).

52244642 is an equidigital number, since it uses as much as digits as its factorization.

52244642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 290 counting only the distinct ones).

The product of its digits is 15360, while the sum is 29.

The square root of 52244642 is about 7228.0455172889. The cubic root of 52244642 is about 373.8355392332.

Adding to 52244642 its reverse (24644225), we get a palindrome (76888867).

The spelling of 52244642 in words is "fifty-two million, two hundred forty-four thousand, six hundred forty-two".