55996393 has 2 divisors, whose sum is σ = 55996394. Its totient is φ = 55996392.

The previous prime is 55996379. The next prime is 55996399. The reversal of 55996393 is 39369955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38044224 + 17952169 = 6168^2 + 4237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55996393 is a prime.

It is not a weakly prime, because it can be changed into another prime (55996399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27998196 + 27998197.

It is an arithmetic number, because the mean of its divisors is an integer number (27998197).

Almost surely, 2^55996393 is an apocalyptic number.

It is an amenable number.

55996393 is a deficient number, since it is larger than the sum of its proper divisors (1).

55996393 is an equidigital number, since it uses as much as digits as its factorization.

55996393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 984150, while the sum is 49.

The square root of 55996393 is about 7483.0737668421. The cubic root of 55996393 is about 382.5780221605.

The spelling of 55996393 in words is "fifty-five million, nine hundred ninety-six thousand, three hundred ninety-three".