55030291 has 2 divisors, whose sum is σ = 55030292. Its totient is φ = 55030290.

The previous prime is 55030259. The next prime is 55030307. The reversal of 55030291 is 19203055.

55030291 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 55030291 - 2⁵ = 55030259 is a prime.

It is equal to p_3283900 and since 55030291 and 3283900 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (55030201) 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, 27515145 + 27515146.

It is an arithmetic number, because the mean of its divisors is an integer number (27515146).

Almost surely, 2^55030291 is an apocalyptic number.

55030291 is a deficient number, since it is larger than the sum of its proper divisors (1).

55030291 is an equidigital number, since it uses as much as digits as its factorization.

55030291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 55030291 is about 7418.2404247908. The cubic root of 55030291 is about 380.3650485560.

The spelling of 55030291 in words is "fifty-five million, thirty thousand, two hundred ninety-one".