55227197 has 2 divisors, whose sum is σ = 55227198. Its totient is φ = 55227196.

The previous prime is 55227181. The next prime is 55227217. The reversal of 55227197 is 79172255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50608996 + 4618201 = 7114^2 + 2149^2 .

It is a cyclic number.

It is not a de Polignac number, because 55227197 - 2⁴ = 55227181 is a prime.

It is a Chen prime.

It is equal to p_3294992 and since 55227197 and 3294992 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55227197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55221197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27613598 + 27613599.

It is an arithmetic number, because the mean of its divisors is an integer number (27613599).

Almost surely, 2^55227197 is an apocalyptic number.

It is an amenable number.

55227197 is a deficient number, since it is larger than the sum of its proper divisors (1).

55227197 is an equidigital number, since it uses as much as digits as its factorization.

55227197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 38.

The square root of 55227197 is about 7431.5003195855. The cubic root of 55227197 is about 380.8181748035.

The spelling of 55227197 in words is "fifty-five million, two hundred twenty-seven thousand, one hundred ninety-seven".