56170133 has 2 divisors, whose sum is σ = 56170134. Its totient is φ = 56170132.

The previous prime is 56170097. The next prime is 56170139. The reversal of 56170133 is 33107165.

It is a happy number.

56170133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55383364 + 786769 = 7442^2 + 887^2 .

It is a cyclic number.

It is not a de Polignac number, because 56170133 - 2²⁰ = 55121557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56170139) 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 as a sum of consecutive naturals, namely, 28085066 + 28085067.

It is an arithmetic number, because the mean of its divisors is an integer number (28085067).

Almost surely, 2^56170133 is an apocalyptic number.

It is an amenable number.

56170133 is a deficient number, since it is larger than the sum of its proper divisors (1).

56170133 is an equidigital number, since it uses as much as digits as its factorization.

56170133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 56170133 is about 7494.6736419940. The cubic root of 56170133 is about 382.9732885679.

Adding to 56170133 its reverse (33107165), we get a palindrome (89277298).

The spelling of 56170133 in words is "fifty-six million, one hundred seventy thousand, one hundred thirty-three".