52431131 has 2 divisors, whose sum is σ = 52431132. Its totient is φ = 52431130.

The previous prime is 52431121. The next prime is 52431167. The reversal of 52431131 is 13113425.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52431131 is a prime.

It is a super-2 number, since 2×52431131² = 5498046995878322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52431121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26215565 + 26215566.

It is an arithmetic number, because the mean of its divisors is an integer number (26215566).

Almost surely, 2^52431131 is an apocalyptic number.

52431131 is a deficient number, since it is larger than the sum of its proper divisors (1).

52431131 is an equidigital number, since it uses as much as digits as its factorization.

52431131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 52431131 is about 7240.9344010286. The cubic root of 52431131 is about 374.2798171907.

Adding to 52431131 its reverse (13113425), we get a palindrome (65544556).

The spelling of 52431131 in words is "fifty-two million, four hundred thirty-one thousand, one hundred thirty-one".