55000550555 has 12 divisors (see below), whose sum is σ = 68995022880. Its totient is φ = 42087375792.

The previous prime is 55000550537. The next prime is 55000550569. The reversal of 55000550555 is 55505500055.

It is not a de Polignac number, because 55000550555 - 2¹² = 55000546459 is a prime.

It is a super-2 number, since 2×55000550555² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10394435 + ... + 10399724.

It is an arithmetic number, because the mean of its divisors is an integer number (5749585240).

Almost surely, 2^55000550555 is an apocalyptic number.

55000550555 is a deficient number, since it is larger than the sum of its proper divisors (13994472325).

55000550555 is a wasteful number, since it uses less digits than its factorization.

55000550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20794210 (or 20794187 counting only the distinct ones).

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

The spelling of 55000550555 in words is "fifty-five billion, five hundred fifty thousand, five hundred fifty-five".