55475445056017 has 16 divisors (see below), whose sum is σ = 63681022679040. Its totient is φ = 47340019789632.

The previous prime is 55475445055963. The next prime is 55475445056021. The reversal of 55475445056017 is 71065054457455.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55475445056017 is a prime.

It is a super-2 number, since 2×55475445056017² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55475445056077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27184848 + ... + 29154190.

It is an arithmetic number, because the mean of its divisors is an integer number (3980063917440).

Almost surely, 2^{55475445056017} is an apocalyptic number.

It is an amenable number.

55475445056017 is a deficient number, since it is larger than the sum of its proper divisors (8205577623023).

55475445056017 is a wasteful number, since it uses less digits than its factorization.

55475445056017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987152.

The product of its (nonzero) digits is 58800000, while the sum is 58.

The spelling of 55475445056017 in words is "fifty-five trillion, four hundred seventy-five billion, four hundred forty-five million, fifty-six thousand, seventeen".