52240121 has 2 divisors, whose sum is σ = 52240122. Its totient is φ = 52240120.

The previous prime is 52240091. The next prime is 52240163. The reversal of 52240121 is 12104225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31764496 + 20475625 = 5636^2 + 4525^2 .

It is a cyclic number.

It is not a de Polignac number, because 52240121 - 2⁶ = 52240057 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52240121.

It is not a weakly prime, because it can be changed into another prime (52240421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26120060 + 26120061.

It is an arithmetic number, because the mean of its divisors is an integer number (26120061).

Almost surely, 2^52240121 is an apocalyptic number.

It is an amenable number.

52240121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52240121 is an equidigital number, since it uses as much as digits as its factorization.

52240121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 52240121 is about 7227.7327703783. The cubic root of 52240121 is about 373.8247556123.

Adding to 52240121 its reverse (12104225), we get a palindrome (64344346).

The spelling of 52240121 in words is "fifty-two million, two hundred forty thousand, one hundred twenty-one".