55205315242 has 16 divisors (see below), whose sum is σ = 103241109312. Its totient is φ = 21508564320.

The previous prime is 55205315237. The next prime is 55205315257. The reversal of 55205315242 is 24251350255.

It is a junction number, because it is equal to n+sod(n) for n = 55205315198 and 55205315207.

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 7 ways as a sum of consecutive naturals, for example, 179237883 + ... + 179238190.

It is an arithmetic number, because the mean of its divisors is an integer number (6452569332).

Almost surely, 2^55205315242 is an apocalyptic number.

55205315242 is a deficient number, since it is larger than the sum of its proper divisors (48035794070).

55205315242 is a wasteful number, since it uses less digits than its factorization.

55205315242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358476093.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 55205315242 its reverse (24251350255), we get a palindrome (79456665497).

The spelling of 55205315242 in words is "fifty-five billion, two hundred five million, three hundred fifteen thousand, two hundred forty-two".