55085417 has 2 divisors, whose sum is σ = 55085418. Its totient is φ = 55085416.

The previous prime is 55085411. The next prime is 55085431. The reversal of 55085417 is 71458055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41165056 + 13920361 = 6416^2 + 3731^2 .

It is a cyclic number.

It is not a de Polignac number, because 55085417 - 2¹⁴ = 55069033 is a prime.

It is not a weakly prime, because it can be changed into another prime (55085411) 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, 27542708 + 27542709.

It is an arithmetic number, because the mean of its divisors is an integer number (27542709).

Almost surely, 2^55085417 is an apocalyptic number.

It is an amenable number.

55085417 is a deficient number, since it is larger than the sum of its proper divisors (1).

55085417 is an equidigital number, since it uses as much as digits as its factorization.

55085417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 55085417 is about 7421.9550658839. The cubic root of 55085417 is about 380.4920150302.

The spelling of 55085417 in words is "fifty-five million, eighty-five thousand, four hundred seventeen".