52431121 has 2 divisors, whose sum is σ = 52431122. Its totient is φ = 52431120.

The previous prime is 52431079. The next prime is 52431131. The reversal of 52431121 is 12113425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29582721 + 22848400 = 5439^2 + 4780^2 .

It is a cyclic number.

It is not a de Polignac number, because 52431121 - 2⁷ = 52430993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52431131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26215560 + 26215561.

It is an arithmetic number, because the mean of its divisors is an integer number (26215561).

Almost surely, 2^52431121 is an apocalyptic number.

It is an amenable number.

52431121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52431121 is an equidigital number, since it uses as much as digits as its factorization.

52431121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 19.

The square root of 52431121 is about 7240.9337105100. The cubic root of 52431121 is about 374.2797933957.

Adding to 52431121 its reverse (12113425), we get a palindrome (64544546).

The spelling of 52431121 in words is "fifty-two million, four hundred thirty-one thousand, one hundred twenty-one".