55245245321 has 32 divisors (see below), whose sum is σ = 68667844608. Its totient is φ = 43364563200.

The previous prime is 55245245261. The next prime is 55245245333. The reversal of 55245245321 is 12354254255.

It is not a de Polignac number, because 55245245321 - 2¹⁴ = 55245228937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55245245351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1325246 + ... + 1366296.

It is an arithmetic number, because the mean of its divisors is an integer number (2145870144).

Almost surely, 2^55245245321 is an apocalyptic number.

It is an amenable number.

55245245321 is a deficient number, since it is larger than the sum of its proper divisors (13422599287).

55245245321 is a wasteful number, since it uses less digits than its factorization.

55245245321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41381.

The product of its digits is 240000, while the sum is 38.

Adding to 55245245321 its reverse (12354254255), we get a palindrome (67599499576).

The spelling of 55245245321 in words is "fifty-five billion, two hundred forty-five million, two hundred forty-five thousand, three hundred twenty-one".