56494165181 has 2 divisors, whose sum is σ = 56494165182. Its totient is φ = 56494165180.

The previous prime is 56494165171. The next prime is 56494165183. The reversal of 56494165181 is 18156149465.

It is a happy number.

56494165181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48810064900 + 7684100281 = 220930^2 + 87659^2 .

It is a cyclic number.

It is not a de Polignac number, because 56494165181 - 2²² = 56489970877 is a prime.

It is a super-2 number, since 2×56494165181² (a number of 22 digits) contains 22 as substring.

Together with 56494165183, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56494165183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28247082590 + 28247082591.

It is an arithmetic number, because the mean of its divisors is an integer number (28247082591).

Almost surely, 2^56494165181 is an apocalyptic number.

It is an amenable number.

56494165181 is a deficient number, since it is larger than the sum of its proper divisors (1).

56494165181 is an equidigital number, since it uses as much as digits as its factorization.

56494165181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 50.

The spelling of 56494165181 in words is "fifty-six billion, four hundred ninety-four million, one hundred sixty-five thousand, one hundred eighty-one".