52081231 has 2 divisors, whose sum is σ = 52081232. Its totient is φ = 52081230.

The previous prime is 52081201. The next prime is 52081273. The reversal of 52081231 is 13218025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52081231 - 2¹⁷ = 51950159 is a prime.

It is a super-2 number, since 2×52081231² = 5424909244950722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52081201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26040615 + 26040616.

It is an arithmetic number, because the mean of its divisors is an integer number (26040616).

Almost surely, 2^52081231 is an apocalyptic number.

52081231 is a deficient number, since it is larger than the sum of its proper divisors (1).

52081231 is an equidigital number, since it uses as much as digits as its factorization.

52081231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 52081231 is about 7216.7327094746. The cubic root of 52081231 is about 373.4453707286.

Adding to 52081231 its reverse (13218025), we get a palindrome (65299256).

The spelling of 52081231 in words is "fifty-two million, eighty-one thousand, two hundred thirty-one".