55517005 has 8 divisors (see below), whose sum is σ = 66707424. Its totient is φ = 44355600.

The previous prime is 55517003. The next prime is 55517039. The reversal of 55517005 is 50071555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55517005 - 2¹ = 55517003 is a prime.

It is a super-3 number, since 3×55517005³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55517003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2791 + ... + 10900.

It is an arithmetic number, because the mean of its divisors is an integer number (8338428).

Almost surely, 2^55517005 is an apocalyptic number.

It is an amenable number.

55517005 is a deficient number, since it is larger than the sum of its proper divisors (11190419).

55517005 is a wasteful number, since it uses less digits than its factorization.

55517005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14507.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 55517005 is about 7450.9734263383. The cubic root of 55517005 is about 381.4831350220.

The spelling of 55517005 in words is "fifty-five million, five hundred seventeen thousand, five".