55198607 has 2 divisors, whose sum is σ = 55198608. Its totient is φ = 55198606.

The previous prime is 55198603. The next prime is 55198639. The reversal of 55198607 is 70689155.

55198607 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 55198607 - 2² = 55198603 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55198603) 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, 27599303 + 27599304.

It is an arithmetic number, because the mean of its divisors is an integer number (27599304).

Almost surely, 2^55198607 is an apocalyptic number.

55198607 is a deficient number, since it is larger than the sum of its proper divisors (1).

55198607 is an equidigital number, since it uses as much as digits as its factorization.

55198607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 55198607 is about 7429.5765020626. The cubic root of 55198607 is about 380.7524495117.

The spelling of 55198607 in words is "fifty-five million, one hundred ninety-eight thousand, six hundred seven".