55998193 has 2 divisors, whose sum is σ = 55998194. Its totient is φ = 55998192.

The previous prime is 55998109. The next prime is 55998203. The reversal of 55998193 is 39189955.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39538944 + 16459249 = 6288^2 + 4057^2 .

It is a cyclic number.

It is not a de Polignac number, because 55998193 - 2²¹ = 53901041 is a prime.

It is not a weakly prime, because it can be changed into another prime (55992193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27999096 + 27999097.

It is an arithmetic number, because the mean of its divisors is an integer number (27999097).

Almost surely, 2^55998193 is an apocalyptic number.

It is an amenable number.

55998193 is a deficient number, since it is larger than the sum of its proper divisors (1).

55998193 is an equidigital number, since it uses as much as digits as its factorization.

55998193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 49.

The square root of 55998193 is about 7483.1940373079. The cubic root of 55998193 is about 382.5821214309.

The spelling of 55998193 in words is "fifty-five million, nine hundred ninety-eight thousand, one hundred ninety-three".