56511020516119 has 4 divisors (see below), whose sum is σ = 60858022094296. Its totient is φ = 52164018937944.

The previous prime is 56511020516117. The next prime is 56511020516147. The reversal of 56511020516119 is 91161502011565.

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 56511020516119 - 2¹ = 56511020516117 is a prime.

It is a super-2 number, since 2×56511020516119² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56511020516117) 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, 2173500789069 + ... + 2173500789094.

It is an arithmetic number, because the mean of its divisors is an integer number (15214505523574).

Almost surely, 2^{56511020516119} is an apocalyptic number.

56511020516119 is a deficient number, since it is larger than the sum of its proper divisors (4347001578177).

56511020516119 is a wasteful number, since it uses less digits than its factorization.

56511020516119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347001578176.

The product of its (nonzero) digits is 81000, while the sum is 43.

The spelling of 56511020516119 in words is "fifty-six trillion, five hundred eleven billion, twenty million, five hundred sixteen thousand, one hundred nineteen".