55420442204 has 18 divisors (see below), whose sum is σ = 103026412440. Its totient is φ = 26080207552.

The previous prime is 55420442137. The next prime is 55420442227. The reversal of 55420442204 is 40224402455.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 23969624 + ... + 23971935.

It is an arithmetic number, because the mean of its divisors is an integer number (5723689580).

Almost surely, 2^55420442204 is an apocalyptic number.

It is an amenable number.

55420442204 is a deficient number, since it is larger than the sum of its proper divisors (47605970236).

55420442204 is a wasteful number, since it uses less digits than its factorization.

55420442204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47941597 (or 47941578 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 32.

Adding to 55420442204 its reverse (40224402455), we get a palindrome (95644844659).

The spelling of 55420442204 in words is "fifty-five billion, four hundred twenty million, four hundred forty-two thousand, two hundred four".