56494170919 has 2 divisors, whose sum is σ = 56494170920. Its totient is φ = 56494170918.

The previous prime is 56494170917. The next prime is 56494170973. The reversal of 56494170919 is 91907149465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56494170919 - 2¹ = 56494170917 is a prime.

It is a super-2 number, since 2×56494170919² (a number of 22 digits) contains 22 as substring.

Together with 56494170917, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 56494170919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56494170913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28247085459 + 28247085460.

It is an arithmetic number, because the mean of its divisors is an integer number (28247085460).

Almost surely, 2^56494170919 is an apocalyptic number.

56494170919 is a deficient number, since it is larger than the sum of its proper divisors (1).

56494170919 is an equidigital number, since it uses as much as digits as its factorization.

56494170919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 56494170919 in words is "fifty-six billion, four hundred ninety-four million, one hundred seventy thousand, nine hundred nineteen".