55555050505555 has 16 divisors (see below), whose sum is σ = 68980818816000. Its totient is φ = 42907711603680.

The previous prime is 55555050505553. The next prime is 55555050505637. The reversal of 55555050505555 is 55550505055555.

It is not a de Polignac number, because 55555050505555 - 2¹ = 55555050505553 is a prime.

It is a super-2 number, since 2×55555050505555² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55555050505496 and 55555050505505.

It is not an unprimeable number, because it can be changed into a prime (55555050505553) 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, 427643505 + ... + 427773394.

It is an arithmetic number, because the mean of its divisors is an integer number (4311301176000).

Almost surely, 2^{55555050505555} is an apocalyptic number.

55555050505555 is a deficient number, since it is larger than the sum of its proper divisors (13425768310445).

55555050505555 is a wasteful number, since it uses less digits than its factorization.

55555050505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855417354.

The product of its (nonzero) digits is 48828125, while the sum is 55.

The spelling of 55555050505555 in words is "fifty-five trillion, five hundred fifty-five billion, fifty million, five hundred five thousand, five hundred fifty-five".