56116511 has 4 divisors (see below), whose sum is σ = 61218024. Its totient is φ = 51015000.

The previous prime is 56116477. The next prime is 56116513. The reversal of 56116511 is 11561165.

56116511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56116511 - 2⁶ = 56116447 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 (56116513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550740 + ... + 2550761.

It is an arithmetic number, because the mean of its divisors is an integer number (15304506).

Almost surely, 2^56116511 is an apocalyptic number.

56116511 is a deficient number, since it is larger than the sum of its proper divisors (5101513).

56116511 is a wasteful number, since it uses less digits than its factorization.

56116511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101512.

The product of its digits is 900, while the sum is 26.

The square root of 56116511 is about 7491.0954472627. The cubic root of 56116511 is about 382.8513831425.

Adding to 56116511 its reverse (11561165), we get a palindrome (67677676).

The spelling of 56116511 in words is "fifty-six million, one hundred sixteen thousand, five hundred eleven".