55675309 has 2 divisors, whose sum is σ = 55675310. Its totient is φ = 55675308.

The previous prime is 55675303. The next prime is 55675313. The reversal of 55675309 is 90357655.

55675309 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., 52969284 + 2706025 = 7278^2 + 1645^2 .

It is a cyclic number.

It is not a de Polignac number, because 55675309 - 2⁷ = 55675181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55675303) 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, 27837654 + 27837655.

It is an arithmetic number, because the mean of its divisors is an integer number (27837655).

Almost surely, 2^55675309 is an apocalyptic number.

It is an amenable number.

55675309 is a deficient number, since it is larger than the sum of its proper divisors (1).

55675309 is an equidigital number, since it uses as much as digits as its factorization.

55675309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141750, while the sum is 40.

The square root of 55675309 is about 7461.5889058564. The cubic root of 55675309 is about 381.8453843723.

The spelling of 55675309 in words is "fifty-five million, six hundred seventy-five thousand, three hundred nine".