53543131 has 2 divisors, whose sum is σ = 53543132. Its totient is φ = 53543130.

The previous prime is 53543111. The next prime is 53543137. The reversal of 53543131 is 13134535.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53543131 - 2¹³ = 53534939 is a prime.

It is a super-2 number, since 2×53543131² = 5733733754566322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53543096 and 53543105.

It is not a weakly prime, because it can be changed into another prime (53543137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26771565 + 26771566.

It is an arithmetic number, because the mean of its divisors is an integer number (26771566).

Almost surely, 2^53543131 is an apocalyptic number.

53543131 is a deficient number, since it is larger than the sum of its proper divisors (1).

53543131 is an equidigital number, since it uses as much as digits as its factorization.

53543131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 25.

The square root of 53543131 is about 7317.3171996299. The cubic root of 53543131 is about 376.9073336871.

Adding to 53543131 its reverse (13134535), we get a palindrome (66677666).

The spelling of 53543131 in words is "fifty-three million, five hundred forty-three thousand, one hundred thirty-one".