56505073219 has 4 divisors (see below), whose sum is σ = 64577226544. Its totient is φ = 48432919896.

The previous prime is 56505073213. The next prime is 56505073223. The reversal of 56505073219 is 91237050565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56505073219 - 2¹³ = 56505065027 is a prime.

It is a super-2 number, since 2×56505073219² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56505073213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4036076652 + ... + 4036076665.

It is an arithmetic number, because the mean of its divisors is an integer number (16144306636).

Almost surely, 2^56505073219 is an apocalyptic number.

56505073219 is a deficient number, since it is larger than the sum of its proper divisors (8072153325).

56505073219 is an equidigital number, since it uses as much as digits as its factorization.

56505073219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072153324.

The product of its (nonzero) digits is 283500, while the sum is 43.

The spelling of 56505073219 in words is "fifty-six billion, five hundred five million, seventy-three thousand, two hundred nineteen".