55084399 has 2 divisors, whose sum is σ = 55084400. Its totient is φ = 55084398.

The previous prime is 55084397. The next prime is 55084433. The reversal of 55084399 is 99348055.

It is a happy number.

55084399 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 55084399 - 2¹ = 55084397 is a prime.

Together with 55084397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55084391) 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, 27542199 + 27542200.

It is an arithmetic number, because the mean of its divisors is an integer number (27542200).

Almost surely, 2^55084399 is an apocalyptic number.

55084399 is a deficient number, since it is larger than the sum of its proper divisors (1).

55084399 is an equidigital number, since it uses as much as digits as its factorization.

55084399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 55084399 is about 7421.8864852543. The cubic root of 55084399 is about 380.4896711354.

The spelling of 55084399 in words is "fifty-five million, eighty-four thousand, three hundred ninety-nine".