55213204244 has 24 divisors (see below), whose sum is σ = 106891638336. Its totient is φ = 24743432000.

The previous prime is 55213204237. The next prime is 55213204247. The reversal of 55213204244 is 44240231255.

It is a super-2 number, since 2×55213204244² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55213204244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213204247) 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 7 ways as a sum of consecutive naturals, for example, 8833817 + ... + 8840064.

It is an arithmetic number, because the mean of its divisors is an integer number (4453818264).

Almost surely, 2^55213204244 is an apocalyptic number.

It is an amenable number.

55213204244 is a deficient number, since it is larger than the sum of its proper divisors (51678434092).

55213204244 is a wasteful number, since it uses less digits than its factorization.

55213204244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17673967 (or 17673965 counting only the distinct ones).

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

Adding to 55213204244 its reverse (44240231255), we get a palindrome (99453435499).

The spelling of 55213204244 in words is "fifty-five billion, two hundred thirteen million, two hundred four thousand, two hundred forty-four".