56155106555 has 16 divisors (see below), whose sum is σ = 68334956640. Its totient is φ = 44291996928.

The previous prime is 56155106551. The next prime is 56155106563. The reversal of 56155106555 is 55560155165.

It is a cyclic number.

It is not a de Polignac number, because 56155106555 - 2² = 56155106551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56155106551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 990404 + ... + 1045566.

It is an arithmetic number, because the mean of its divisors is an integer number (4270934790).

Almost surely, 2^56155106555 is an apocalyptic number.

56155106555 is a deficient number, since it is larger than the sum of its proper divisors (12179850085).

56155106555 is a wasteful number, since it uses less digits than its factorization.

56155106555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58030.

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 56155106555 in words is "fifty-six billion, one hundred fifty-five million, one hundred six thousand, five hundred fifty-five".