55992317 has 2 divisors, whose sum is σ = 55992318. Its totient is φ = 55992316.

The previous prime is 55992289. The next prime is 55992329. The reversal of 55992317 is 71329955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35868121 + 20124196 = 5989^2 + 4486^2 .

It is a cyclic number.

It is not a de Polignac number, because 55992317 - 2⁸ = 55992061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55992337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27996158 + 27996159.

It is an arithmetic number, because the mean of its divisors is an integer number (27996159).

Almost surely, 2^55992317 is an apocalyptic number.

It is an amenable number.

55992317 is a deficient number, since it is larger than the sum of its proper divisors (1).

55992317 is an equidigital number, since it uses as much as digits as its factorization.

55992317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 85050, while the sum is 41.

The square root of 55992317 is about 7482.8014139091. The cubic root of 55992317 is about 382.5687392658.

The spelling of 55992317 in words is "fifty-five million, nine hundred ninety-two thousand, three hundred seventeen".