56617133 has 2 divisors, whose sum is σ = 56617134. Its totient is φ = 56617132.

The previous prime is 56617117. The next prime is 56617153. The reversal of 56617133 is 33171665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54361129 + 2256004 = 7373^2 + 1502^2 .

It is a cyclic number.

It is not a de Polignac number, because 56617133 - 2⁴ = 56617117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56617133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56617103) 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 as a sum of consecutive naturals, namely, 28308566 + 28308567.

It is an arithmetic number, because the mean of its divisors is an integer number (28308567).

Almost surely, 2^56617133 is an apocalyptic number.

It is an amenable number.

56617133 is a deficient number, since it is larger than the sum of its proper divisors (1).

56617133 is an equidigital number, since it uses as much as digits as its factorization.

56617133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 32.

The square root of 56617133 is about 7524.4357263518. The cubic root of 56617133 is about 383.9865017137.

Adding to 56617133 its reverse (33171665), we get a palindrome (89788798).

The spelling of 56617133 in words is "fifty-six million, six hundred seventeen thousand, one hundred thirty-three".