55005554 has 8 divisors (see below), whose sum is σ = 82558128.
Its totient is φ = 27486180.
The previous prime is 55005553. The next prime is 55005583. The reversal of 55005554 is 45550055.
55005554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×550055542 = 6051221941693832, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (55005553) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3632 + ... + 11099.
It is an arithmetic number, because the mean of its divisors is an integer number (10319766).
Almost surely, 255005554 is an apocalyptic number.
55005554 is a deficient number, since it is larger than the sum of its proper divisors (27552574).
55005554 is a wasteful number, since it uses less digits than its factorization.
55005554 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16600.
The product of its (nonzero) digits is 12500, while the sum is 29.
The square root of 55005554 is about 7416.5729282466.
The cubic root of 55005554 is about 380.3080466137.
The spelling of 55005554 in words is "fifty-five million, five thousand, five hundred fifty-four".