55050505 has 32 divisors (see below), whose sum is σ = 74649600. Its totient is φ = 38725632.

The previous prime is 55050493. The next prime is 55050521. The reversal of 55050505 is 50505055.

It is a cyclic number.

It is not a de Polignac number, because 55050505 - 2²³ = 46661897 is a prime.

55050505 is a modest number, since divided by 50505 gives 55 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 55050505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143544 + ... + 143926.

It is an arithmetic number, because the mean of its divisors is an integer number (2332800).

Almost surely, 2^55050505 is an apocalyptic number.

It is an amenable number.

55050505 is a deficient number, since it is larger than the sum of its proper divisors (19599095).

55050505 is a wasteful number, since it uses less digits than its factorization.

55050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 3125, while the sum is 25.

The square root of 55050505 is about 7419.6027521694. The cubic root of 55050505 is about 380.4116153814.

It can be divided in two parts, 5505050 and 5, that added together give a palindrome (5505055).

The spelling of 55050505 in words is "fifty-five million, fifty thousand, five hundred five".