56131 has 2 divisors, whose sum is σ = 56132. Its totient is φ = 56130.

The previous prime is 56123. The next prime is 56149. The reversal of 56131 is 13165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56131 - 2³ = 56123 is a prime.

It is a super-2 number, since 2×56131² = 6301378322, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (56101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28065 + 28066.

It is an arithmetic number, because the mean of its divisors is an integer number (28066).

2⁵⁶¹³¹ is an apocalyptic number.

56131 is a deficient number, since it is larger than the sum of its proper divisors (1).

56131 is an equidigital number, since it uses as much as digits as its factorization.

56131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90, while the sum is 16.

The square root of 56131 is about 236.9198176599. The cubic root of 56131 is about 38.2884330405.

Adding to 56131 its reverse (13165), we get a palindrome (69296).

It can be divided in two parts, 561 and 31, that multiplied together give a triangular number (17391 = T₁₈₆).

The spelling of 56131 in words is "fifty-six thousand, one hundred thirty-one".