55706587 has 2 divisors, whose sum is σ = 55706588. Its totient is φ = 55706586.

The previous prime is 55706579. The next prime is 55706641. The reversal of 55706587 is 78560755.

55706587 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 55706587 - 2³ = 55706579 is a prime.

It is not a weakly prime, because it can be changed into another prime (55706507) 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, 27853293 + 27853294.

It is an arithmetic number, because the mean of its divisors is an integer number (27853294).

Almost surely, 2^55706587 is an apocalyptic number.

55706587 is a deficient number, since it is larger than the sum of its proper divisors (1).

55706587 is an equidigital number, since it uses as much as digits as its factorization.

55706587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 55706587 is about 7463.6845458527. The cubic root of 55706587 is about 381.9168770099.

The spelling of 55706587 in words is "fifty-five million, seven hundred six thousand, five hundred eighty-seven".