55224430142 has 32 divisors (see below), whose sum is σ = 98680355328. Its totient is φ = 22684232736.

The previous prime is 55224430103. The next prime is 55224430199. The reversal of 55224430142 is 24103442255.

It is a junction number, because it is equal to n+sod(n) for n = 55224430099 and 55224430108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760898 + ... + 830309.

It is an arithmetic number, because the mean of its divisors is an integer number (3083761104).

Almost surely, 2^55224430142 is an apocalyptic number.

55224430142 is a deficient number, since it is larger than the sum of its proper divisors (43455925186).

55224430142 is a wasteful number, since it uses less digits than its factorization.

55224430142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591320.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 55224430142 its reverse (24103442255), we get a palindrome (79327872397).

The spelling of 55224430142 in words is "fifty-five billion, two hundred twenty-four million, four hundred thirty thousand, one hundred forty-two".