56066111 has 4 divisors (see below), whose sum is σ = 58503792. Its totient is φ = 53628432.

The previous prime is 56066089. The next prime is 56066141. The reversal of 56066111 is 11166065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11166065 = 5 ⋅2233213.

It is a cyclic number.

It is not a de Polignac number, because 56066111 - 2⁶ = 56066047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56066141) 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, 1218806 + ... + 1218851.

It is an arithmetic number, because the mean of its divisors is an integer number (14625948).

Almost surely, 2^56066111 is an apocalyptic number.

56066111 is a deficient number, since it is larger than the sum of its proper divisors (2437681).

56066111 is a wasteful number, since it uses less digits than its factorization.

56066111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2437680.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 56066111 is about 7487.7306976146. The cubic root of 56066111 is about 382.7367318634.

The spelling of 56066111 in words is "fifty-six million, sixty-six thousand, one hundred eleven".