555240122444 has 24 divisors (see below), whose sum is σ = 1110568306848. Its totient is φ = 237941182080.

The previous prime is 555240122417. The next prime is 555240122449. The reversal of 555240122444 is 444221042555.

It is a super-2 number, since 2×555240122444² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 555240122398 and 555240122407.

It is not an unprimeable number, because it can be changed into a prime (555240122449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 423947 + ... + 1135874.

It is an arithmetic number, because the mean of its divisors is an integer number (46273679452).

Almost surely, 2^555240122444 is an apocalyptic number.

It is an amenable number.

555240122444 is an abundant number, since it is smaller than the sum of its proper divisors (555328184404).

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

555240122444 is a wasteful number, since it uses less digits than its factorization.

555240122444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572545 (or 1572543 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 555240122444 its reverse (444221042555), we get a palindrome (999461164999).

The spelling of 555240122444 in words is "five hundred fifty-five billion, two hundred forty million, one hundred twenty-two thousand, four hundred forty-four".