55555005505 has 32 divisors (see below), whose sum is σ = 69809040000. Its totient is φ = 42387147264.

The previous prime is 55555005497. The next prime is 55555005509. The reversal of 55555005505 is 50550055555.

55555005505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55555005505 - 2³ = 55555005497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55555005509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20891866 + ... + 20894524.

It is an arithmetic number, because the mean of its divisors is an integer number (2181532500).

Almost surely, 2^55555005505 is an apocalyptic number.

It is an amenable number.

55555005505 is a deficient number, since it is larger than the sum of its proper divisors (14254034495).

55555005505 is a wasteful number, since it uses less digits than its factorization.

55555005505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55555005505 in words is "fifty-five billion, five hundred fifty-five million, five thousand, five hundred five".