55493329 has 2 divisors, whose sum is σ = 55493330. Its totient is φ = 55493328.

The previous prime is 55493297. The next prime is 55493351. The reversal of 55493329 is 92339455.

55493329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38254225 + 17239104 = 6185^2 + 4152^2 .

It is a cyclic number.

It is not a de Polignac number, because 55493329 - 2⁵ = 55493297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55493291 and 55493300.

It is not a weakly prime, because it can be changed into another prime (55493429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27746664 + 27746665.

It is an arithmetic number, because the mean of its divisors is an integer number (27746665).

Almost surely, 2^55493329 is an apocalyptic number.

It is an amenable number.

55493329 is a deficient number, since it is larger than the sum of its proper divisors (1).

55493329 is an equidigital number, since it uses as much as digits as its factorization.

55493329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145800, while the sum is 40.

The square root of 55493329 is about 7449.3844712164. The cubic root of 55493329 is about 381.4288977125.

The spelling of 55493329 in words is "fifty-five million, four hundred ninety-three thousand, three hundred twenty-nine".