56001005111 has 8 divisors (see below), whose sum is σ = 56145325824. Its totient is φ = 55856851960.

The previous prime is 56001005069. The next prime is 56001005119. The reversal of 56001005111 is 11150010065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56001005111 is a prime.

It is a super-2 number, since 2×56001005111² (a number of 22 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 (56001005119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641666 + ... + 723696.

It is an arithmetic number, because the mean of its divisors is an integer number (7018165728).

Almost surely, 2^56001005111 is an apocalyptic number.

56001005111 is a deficient number, since it is larger than the sum of its proper divisors (144320713).

56001005111 is a wasteful number, since it uses less digits than its factorization.

56001005111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83781.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 56001005111 its reverse (11150010065), we get a palindrome (67151015176).

The spelling of 56001005111 in words is "fifty-six billion, one million, five thousand, one hundred eleven".