55550005028007 has 16 divisors (see below), whose sum is σ = 84651837211392. Its totient is φ = 31741281077760.

The previous prime is 55550005028003. The next prime is 55550005028009. The reversal of 55550005028007 is 70082050005555.

It is not a de Polignac number, because 55550005028007 - 2² = 55550005028003 is a prime.

It is a super-2 number, since 2×55550005028007² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55550005028007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550005028003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65356794 + ... + 66201287.

It is an arithmetic number, because the mean of its divisors is an integer number (5290739825712).

Almost surely, 2^{55550005028007} is an apocalyptic number.

55550005028007 is a deficient number, since it is larger than the sum of its proper divisors (29101832183385).

55550005028007 is a wasteful number, since it uses less digits than its factorization.

55550005028007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131578198.

The product of its (nonzero) digits is 350000, while the sum is 42.

The spelling of 55550005028007 in words is "fifty-five trillion, five hundred fifty billion, five million, twenty-eight thousand, seven".