52265621 has 2 divisors, whose sum is σ = 52265622. Its totient is φ = 52265620.

The previous prime is 52265567. The next prime is 52265639. The reversal of 52265621 is 12656225.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51480625 + 784996 = 7175^2 + 886^2 .

It is a cyclic number.

It is not a de Polignac number, because 52265621 - 2¹⁴ = 52249237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52265671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26132810 + 26132811.

It is an arithmetic number, because the mean of its divisors is an integer number (26132811).

Almost surely, 2^52265621 is an apocalyptic number.

It is an amenable number.

52265621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52265621 is an equidigital number, since it uses as much as digits as its factorization.

52265621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 52265621 is about 7229.4965938162. The cubic root of 52265621 is about 373.8855708151.

The spelling of 52265621 in words is "fifty-two million, two hundred sixty-five thousand, six hundred twenty-one".