55566017 has 12 divisors (see below), whose sum is σ = 60510780. Its totient is φ = 51000768.

The previous prime is 55566011. The next prime is 55566031. The reversal of 55566017 is 71066555.

It can be written as a sum of positive squares in 6 ways, for example, as 152881 + 55413136 = 391^2 + 7444^2 .

It is not a de Polignac number, because 55566017 - 2¹² = 55561921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55566011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32459 + ... + 34127.

It is an arithmetic number, because the mean of its divisors is an integer number (5042565).

Almost surely, 2^55566017 is an apocalyptic number.

It is an amenable number.

55566017 is a deficient number, since it is larger than the sum of its proper divisors (4944763).

55566017 is a wasteful number, since it uses less digits than its factorization.

55566017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55566017 is about 7454.2616669929. The cubic root of 55566017 is about 381.5953634102.

The spelling of 55566017 in words is "fifty-five million, five hundred sixty-six thousand, seventeen".