55504617 has 16 divisors (see below), whose sum is σ = 84698112. Its totient is φ = 31672080.

The previous prime is 55504613. The next prime is 55504619. The reversal of 55504617 is 71640555.

It is not a de Polignac number, because 55504617 - 2² = 55504613 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55504613) 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, 18492 + ... + 21282.

It is an arithmetic number, because the mean of its divisors is an integer number (5293632).

Almost surely, 2^55504617 is an apocalyptic number.

It is an amenable number.

55504617 is a deficient number, since it is larger than the sum of its proper divisors (29193495).

55504617 is a wasteful number, since it uses less digits than its factorization.

55504617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 55504617 is about 7450.1420791821. The cubic root of 55504617 is about 381.4547583434.

The spelling of 55504617 in words is "fifty-five million, five hundred four thousand, six hundred seventeen".