55005530 has 16 divisors (see below), whose sum is σ = 100634184. Its totient is φ = 21641280.

The previous prime is 55005521. The next prime is 55005553. The reversal of 55005530 is 3550055.

It is a happy number.

55005530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42523441 + 12482089 = 6521^2 + 3533^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55005496 and 55005505.

It is an unprimeable number.

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, 44477 + ... + 45696.

Almost surely, 2^55005530 is an apocalyptic number.

55005530 is a deficient number, since it is larger than the sum of its proper divisors (45628654).

55005530 is a wasteful number, since it uses less digits than its factorization.

55005530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90241.

The product of its (nonzero) digits is 1875, while the sum is 23.

The square root of 55005530 is about 7416.5713102484. The cubic root of 55005530 is about 380.3079913018.

Adding to 55005530 its reverse (3550055), we get a palindrome (58555585).

The spelling of 55005530 in words is "fifty-five million, five thousand, five hundred thirty".