55030307 has 2 divisors, whose sum is σ = 55030308. Its totient is φ = 55030306.

The previous prime is 55030291. The next prime is 55030321. The reversal of 55030307 is 70303055.

55030307 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 is a cyclic number.

It is not a de Polignac number, because 55030307 - 2⁴ = 55030291 is a prime.

It is a super-3 number, since 3×55030307³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55030337) 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, 27515153 + 27515154.

It is an arithmetic number, because the mean of its divisors is an integer number (27515154).

Almost surely, 2^55030307 is an apocalyptic number.

55030307 is a deficient number, since it is larger than the sum of its proper divisors (1).

55030307 is an equidigital number, since it uses as much as digits as its factorization.

55030307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1575, while the sum is 23.

The square root of 55030307 is about 7418.2415032135. The cubic root of 55030307 is about 380.3650854195.

The spelling of 55030307 in words is "fifty-five million, thirty thousand, three hundred seven".