55500006505 has 24 divisors (see below), whose sum is σ = 70776300672. Its totient is φ = 41771588352.

The previous prime is 55500006473. The next prime is 55500006511. The reversal of 55500006505 is 50560000555.

55500006505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55500006505 - 2⁵ = 55500006473 is a prime.

It is a super-3 number, since 3×55500006505³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4564464 + ... + 4576606.

It is an arithmetic number, because the mean of its divisors is an integer number (2949012528).

Almost surely, 2^55500006505 is an apocalyptic number.

It is an amenable number.

55500006505 is a deficient number, since it is larger than the sum of its proper divisors (15276294167).

55500006505 is a wasteful number, since it uses less digits than its factorization.

55500006505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15345 (or 15328 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The spelling of 55500006505 in words is "fifty-five billion, five hundred million, six thousand, five hundred five".