55142403200 has 96 divisors (see below), whose sum is σ = 140613381120. Its totient is φ = 21345408000.

The previous prime is 55142403179. The next prime is 55142403227. The reversal of 55142403200 is 230424155.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55142403200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178736 + ... + 377135.

It is an arithmetic number, because the mean of its divisors is an integer number (1464722720).

Almost surely, 2^55142403200 is an apocalyptic number.

55142403200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55142403200 is an abundant number, since it is smaller than the sum of its proper divisors (85470977920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55142403200 is a wasteful number, since it uses less digits than its factorization.

55142403200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555926 (or 555909 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 55142403200 its reverse (230424155), we get a palindrome (55372827355).

The spelling of 55142403200 in words is "fifty-five billion, one hundred forty-two million, four hundred three thousand, two hundred".