55809107 has 2 divisors, whose sum is σ = 55809108. Its totient is φ = 55809106.

The previous prime is 55809101. The next prime is 55809133. The reversal of 55809107 is 70190855.

55809107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55809107 - 2¹² = 55805011 is a prime.

It is a super-2 number, since 2×55809107² = 6229312848274898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55809101) 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, 27904553 + 27904554.

It is an arithmetic number, because the mean of its divisors is an integer number (27904554).

Almost surely, 2^55809107 is an apocalyptic number.

55809107 is a deficient number, since it is larger than the sum of its proper divisors (1).

55809107 is an equidigital number, since it uses as much as digits as its factorization.

55809107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 35.

The square root of 55809107 is about 7470.5493104590. The cubic root of 55809107 is about 382.1510212148.

The spelling of 55809107 in words is "fifty-five million, eight hundred nine thousand, one hundred seven".