56005550511001 has 32 divisors (see below), whose sum is σ = 68990492712960. Its totient is φ = 44273153427264.

The previous prime is 56005550510989. The next prime is 56005550511011. The reversal of 56005550511001 is 10011505550065.

It is a cyclic number.

It is not a de Polignac number, because 56005550511001 - 2⁷ = 56005550510873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56005550511011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 506585136 + ... + 506695678.

It is an arithmetic number, because the mean of its divisors is an integer number (2155952897280).

Almost surely, 2^{56005550511001} is an apocalyptic number.

It is an amenable number.

56005550511001 is a deficient number, since it is larger than the sum of its proper divisors (12984942201959).

56005550511001 is a wasteful number, since it uses less digits than its factorization.

56005550511001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115405.

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 56005550511001 in words is "fifty-six trillion, five billion, five hundred fifty million, five hundred eleven thousand, one".