56015655011 has 4 divisors (see below), whose sum is σ = 58963847400. Its totient is φ = 53067462624.

The previous prime is 56015655001. The next prime is 56015655029. The reversal of 56015655011 is 11055651065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11055651065 = 5 ⋅2211130213.

It is a cyclic number.

It is not a de Polignac number, because 56015655011 - 2¹⁰ = 56015653987 is a prime.

It is a super-2 number, since 2×56015655011² (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 (56015655001) 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, 1474096166 + ... + 1474096203.

It is an arithmetic number, because the mean of its divisors is an integer number (14740961850).

Almost surely, 2^56015655011 is an apocalyptic number.

56015655011 is a deficient number, since it is larger than the sum of its proper divisors (2948192389).

56015655011 is a wasteful number, since it uses less digits than its factorization.

56015655011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948192388.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 56015655011 in words is "fifty-six billion, fifteen million, six hundred fifty-five thousand, eleven".