52237621 has 2 divisors, whose sum is σ = 52237622. Its totient is φ = 52237620.

The previous prime is 52237609. The next prime is 52237637. The reversal of 52237621 is 12673225.

52237621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44702596 + 7535025 = 6686^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 52237621 - 2⁵ = 52237589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52237621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52234621) 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 as a sum of consecutive naturals, namely, 26118810 + 26118811.

It is an arithmetic number, because the mean of its divisors is an integer number (26118811).

Almost surely, 2^52237621 is an apocalyptic number.

It is an amenable number.

52237621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52237621 is an equidigital number, since it uses as much as digits as its factorization.

52237621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 52237621 is about 7227.5598233429. The cubic root of 52237621 is about 373.8187922724.

The spelling of 52237621 in words is "fifty-two million, two hundred thirty-seven thousand, six hundred twenty-one".