55550005505 has 8 divisors (see below), whose sum is σ = 66661530432. Its totient is φ = 44438988528.

The previous prime is 55550005501. The next prime is 55550005543. The reversal of 55550005505 is 50550005555.

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

It is a cyclic number.

It is not a de Polignac number, because 55550005505 - 2² = 55550005501 is a prime.

It is a super-2 number, since 2×55550005505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55550005501) 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, 181934 + ... + 379736.

It is an arithmetic number, because the mean of its divisors is an integer number (8332691304).

Almost surely, 2^55550005505 is an apocalyptic number.

It is an amenable number.

55550005505 is a deficient number, since it is larger than the sum of its proper divisors (11111524927).

55550005505 is a wasteful number, since it uses less digits than its factorization.

55550005505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253975.

The product of its (nonzero) digits is 78125, while the sum is 35.

The spelling of 55550005505 in words is "fifty-five billion, five hundred fifty million, five thousand, five hundred five".