52920229 has 6 divisors (see below), whose sum is σ = 54181446. Its totient is φ = 51687720.

The previous prime is 52920209. The next prime is 52920239. The reversal of 52920229 is 92202925.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28890625 + 24029604 = 5375^2 + 4902^2 .

It is not a de Polignac number, because 52920229 - 2⁹ = 52919717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52920229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52920209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12462 + ... + 16159.

It is an arithmetic number, because the mean of its divisors is an integer number (9030241).

Almost surely, 2^52920229 is an apocalyptic number.

It is an amenable number.

52920229 is a deficient number, since it is larger than the sum of its proper divisors (1261217).

52920229 is an equidigital number, since it uses as much as digits as its factorization.

52920229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28707 (or 28664 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 52920229 is about 7274.6291314403. The cubic root of 52920229 is about 375.4400262845.

The spelling of 52920229 in words is "fifty-two million, nine hundred twenty thousand, two hundred twenty-nine".