55368617 has 2 divisors, whose sum is σ = 55368618.
Its totient is φ = 55368616.
The previous prime is 55368589. The next prime is 55368629. The reversal of 55368617 is 71686355.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 46730896 + 8637721 = 6836^2 + 2939^2
It is a cyclic number.
It is not a de Polignac number, because 55368617 - 218 = 55106473 is a prime.
It is a super-3 number, since 3×553686173 (a number of 24 digits) contains 333 as substring.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (55368637) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27684308 + 27684309.
It is an arithmetic number, because the mean of its divisors is an integer number (27684309).
Almost surely, 255368617 is an apocalyptic number.
It is an amenable number.
55368617 is a deficient number, since it is larger than the sum of its proper divisors (1).
55368617 is an equidigital number, since it uses as much as digits as its factorization.
55368617 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 151200, while the sum is 41.
The square root of 55368617 is about 7441.0091385510.
The cubic root of 55368617 is about 381.1429507925.
The spelling of 55368617 in words is "fifty-five million, three hundred sixty-eight thousand, six hundred seventeen".