55382087 has 2 divisors, whose sum is σ = 55382088. Its totient is φ = 55382086.

The previous prime is 55382077. The next prime is 55382099. The reversal of 55382087 is 78028355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55382087 - 2⁴ = 55382071 is a prime.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 55382087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55382077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27691043 + 27691044.

It is an arithmetic number, because the mean of its divisors is an integer number (27691044).

Almost surely, 2^55382087 is an apocalyptic number.

55382087 is a deficient number, since it is larger than the sum of its proper divisors (1).

55382087 is an equidigital number, since it uses as much as digits as its factorization.

55382087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 55382087 is about 7441.9142026766. The cubic root of 55382087 is about 381.1738562617.

The spelling of 55382087 in words is "fifty-five million, three hundred eighty-two thousand, eighty-seven".