56426130181 has 2 divisors, whose sum is σ = 56426130182. Its totient is φ = 56426130180.

The previous prime is 56426130139. The next prime is 56426130191. The reversal of 56426130181 is 18103162465.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54077177025 + 2348953156 = 232545^2 + 48466^2 .

It is a cyclic number.

It is not a de Polignac number, because 56426130181 - 2⁷ = 56426130053 is a prime.

It is a super-2 number, since 2×56426130181² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56426130181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56426130121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28213065090 + 28213065091.

It is an arithmetic number, because the mean of its divisors is an integer number (28213065091).

Almost surely, 2^56426130181 is an apocalyptic number.

It is an amenable number.

56426130181 is a deficient number, since it is larger than the sum of its proper divisors (1).

56426130181 is an equidigital number, since it uses as much as digits as its factorization.

56426130181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 56426130181 in words is "fifty-six billion, four hundred twenty-six million, one hundred thirty thousand, one hundred eighty-one".