52606621 has 2 divisors, whose sum is σ = 52606622. Its totient is φ = 52606620.

The previous prime is 52606607. The next prime is 52606627. The reversal of 52606621 is 12660625.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51984100 + 622521 = 7210^2 + 789^2 .

It is a cyclic number.

It is not a de Polignac number, because 52606621 - 2¹⁹ = 52082333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52606621.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52606627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26303310 + 26303311.

It is an arithmetic number, because the mean of its divisors is an integer number (26303311).

Almost surely, 2^52606621 is an apocalyptic number.

It is an amenable number.

52606621 is a deficient number, since it is larger than the sum of its proper divisors (1).

52606621 is an equidigital number, since it uses as much as digits as its factorization.

52606621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 52606621 is about 7253.0421893161. The cubic root of 52606621 is about 374.6969308339.

It can be divided in two parts, 5260 and 6621, that added together give a square (11881 = 109²).

The spelling of 52606621 in words is "fifty-two million, six hundred six thousand, six hundred twenty-one".