56116133 has 4 divisors (see below), whose sum is σ = 59417100. Its totient is φ = 52815168.

The previous prime is 56116129. The next prime is 56116141. The reversal of 56116133 is 33161165.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51523684 + 4592449 = 7178^2 + 2143^2 .

It is a cyclic number.

It is not a de Polignac number, because 56116133 - 2² = 56116129 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 (56116103) 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, 1650458 + ... + 1650491.

It is an arithmetic number, because the mean of its divisors is an integer number (14854275).

Almost surely, 2^56116133 is an apocalyptic number.

It is an amenable number.

56116133 is a deficient number, since it is larger than the sum of its proper divisors (3300967).

56116133 is a wasteful number, since it uses less digits than its factorization.

56116133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300966.

The product of its digits is 1620, while the sum is 26.

The square root of 56116133 is about 7491.0702172654. The cubic root of 56116133 is about 382.8505235134.

Adding to 56116133 its reverse (33161165), we get a palindrome (89277298).

The spelling of 56116133 in words is "fifty-six million, one hundred sixteen thousand, one hundred thirty-three".