56111071 has 4 divisors (see below), whose sum is σ = 56787192. Its totient is φ = 55434952.

The previous prime is 56111063. The next prime is 56111141. The reversal of 56111071 is 17011165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17011165 = 5 ⋅3402233.

It is a cyclic number.

It is not a de Polignac number, because 56111071 - 2³ = 56111063 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 (56111021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337936 + ... + 338101.

It is an arithmetic number, because the mean of its divisors is an integer number (14196798).

Almost surely, 2^56111071 is an apocalyptic number.

56111071 is a deficient number, since it is larger than the sum of its proper divisors (676121).

56111071 is an equidigital number, since it uses as much as digits as its factorization.

56111071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676120.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 56111071 is about 7490.7323406994. The cubic root of 56111071 is about 382.8390113895.

The spelling of 56111071 in words is "fifty-six million, one hundred eleven thousand, seventy-one".