53531131 has 2 divisors, whose sum is σ = 53531132. Its totient is φ = 53531130.

The previous prime is 53531077. The next prime is 53531171. The reversal of 53531131 is 13113535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53531131 - 2⁷ = 53531003 is a prime.

It is a super-2 number, since 2×53531131² = 5731163972278322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53531171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26765565 + 26765566.

It is an arithmetic number, because the mean of its divisors is an integer number (26765566).

Almost surely, 2^53531131 is an apocalyptic number.

53531131 is a deficient number, since it is larger than the sum of its proper divisors (1).

53531131 is an equidigital number, since it uses as much as digits as its factorization.

53531131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 675, while the sum is 22.

The square root of 53531131 is about 7316.4971810286. The cubic root of 53531131 is about 376.8791742958.

Adding to 53531131 its reverse (13113535), we get a palindrome (66644666).

The spelling of 53531131 in words is "fifty-three million, five hundred thirty-one thousand, one hundred thirty-one".