55005582 has 16 divisors (see below), whose sum is σ = 111876480.
Its totient is φ = 18024312.
The previous prime is 55005553. The next prime is 55005583. The reversal of 55005582 is 28550055.
55005582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×550055822 = 6051228102317448, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (55005583) 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 7 ways as a sum of consecutive naturals, for example, 77338 + ... + 78045.
It is an arithmetic number, because the mean of its divisors is an integer number (6992280).
Almost surely, 255005582 is an apocalyptic number.
55005582 is an abundant number, since it is smaller than the sum of its proper divisors (56870898).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
55005582 is a wasteful number, since it uses less digits than its factorization.
55005582 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 155447.
The product of its (nonzero) digits is 10000, while the sum is 30.
The square root of 55005582 is about 7416.5748159106.
The cubic root of 55005582 is about 380.3081111443.
The spelling of 55005582 in words is "fifty-five million, five thousand, five hundred eighty-two".