56715061219 has 4 divisors (see below), whose sum is σ = 56864705560. Its totient is φ = 56565416880.

The previous prime is 56715061211. The next prime is 56715061223. The reversal of 56715061219 is 91216051765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91216051765 = 5 ⋅18243210353.

It is a cyclic number.

It is not a de Polignac number, because 56715061219 - 2³ = 56715061211 is a prime.

It is a super-2 number, since 2×56715061219² (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 (56715061211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74821602 + ... + 74822359.

It is an arithmetic number, because the mean of its divisors is an integer number (14216176390).

Almost surely, 2^56715061219 is an apocalyptic number.

56715061219 is a deficient number, since it is larger than the sum of its proper divisors (149644341).

56715061219 is a wasteful number, since it uses less digits than its factorization.

56715061219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149644340.

The product of its (nonzero) digits is 113400, while the sum is 43.

The spelling of 56715061219 in words is "fifty-six billion, seven hundred fifteen million, sixty-one thousand, two hundred nineteen".