55774193 has 2 divisors, whose sum is σ = 55774194. Its totient is φ = 55774192.

The previous prime is 55774189. The next prime is 55774219. The reversal of 55774193 is 39147755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48762289 + 7011904 = 6983^2 + 2648^2 .

It is a cyclic number.

It is not a de Polignac number, because 55774193 - 2² = 55774189 is a prime.

It is a super-2 number, since 2×55774193² = 6221521209602498, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55774193.

It is not a weakly prime, because it can be changed into another prime (55774123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27887096 + 27887097.

It is an arithmetic number, because the mean of its divisors is an integer number (27887097).

Almost surely, 2^55774193 is an apocalyptic number.

It is an amenable number.

55774193 is a deficient number, since it is larger than the sum of its proper divisors (1).

55774193 is an equidigital number, since it uses as much as digits as its factorization.

55774193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 41.

The square root of 55774193 is about 7468.2121689197. The cubic root of 55774193 is about 382.0713137694.

The spelling of 55774193 in words is "fifty-five million, seven hundred seventy-four thousand, one hundred ninety-three".