55212263313540 has 24 divisors (see below), whose sum is σ = 154594337278080. Its totient is φ = 14723270216928.

The previous prime is 55212263313527. The next prime is 55212263313541. The reversal of 55212263313540 is 4531336221255.

It is a junction number, because it is equal to n+sod(n) for n = 55212263313492 and 55212263313501.

It is not an unprimeable number, because it can be changed into a prime (55212263313541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460102194220 + ... + 460102194339.

It is an arithmetic number, because the mean of its divisors is an integer number (6441430719920).

Almost surely, 2^{55212263313540} is an apocalyptic number.

It is an amenable number.

55212263313540 is an abundant number, since it is smaller than the sum of its proper divisors (99382073964540).

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

55212263313540 is a wasteful number, since it uses less digits than its factorization.

55212263313540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920204388571 (or 920204388569 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 55212263313540 its reverse (4531336221255), we get a palindrome (59743599534795).

The spelling of 55212263313540 in words is "fifty-five trillion, two hundred twelve billion, two hundred sixty-three million, three hundred thirteen thousand, five hundred forty".