55202444242 has 8 divisors (see below), whose sum is σ = 90331272432. Its totient is φ = 25092020100.

The previous prime is 55202444237. The next prime is 55202444249. The reversal of 55202444242 is 24244420255.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55202444242² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55202444198 and 55202444207.

It is not an unprimeable number, because it can be changed into a prime (55202444249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1254600984 + ... + 1254601027.

It is an arithmetic number, because the mean of its divisors is an integer number (11291409054).

Almost surely, 2^55202444242 is an apocalyptic number.

55202444242 is a deficient number, since it is larger than the sum of its proper divisors (35128828190).

55202444242 is a wasteful number, since it uses less digits than its factorization.

55202444242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509202024.

The product of its (nonzero) digits is 102400, while the sum is 34.

Adding to 55202444242 its reverse (24244420255), we get a palindrome (79446864497).

The spelling of 55202444242 in words is "fifty-five billion, two hundred two million, four hundred forty-four thousand, two hundred forty-two".