55124522344520 has 16 divisors (see below), whose sum is σ = 124030175275260. Its totient is φ = 22049808937792.

The previous prime is 55124522344519. The next prime is 55124522344589. The reversal of 55124522344520 is 2544322542155.

It can be written as a sum of positive squares in 2 ways, for example, as 54827242229764 + 297280114756 = 7404542^2 + 545234^2 .

It is a super-2 number, since 2×55124522344520² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 689056529267 + ... + 689056529346.

Almost surely, 2^{55124522344520} is an apocalyptic number.

It is an amenable number.

55124522344520 is an abundant number, since it is smaller than the sum of its proper divisors (68905652930740).

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

55124522344520 is a wasteful number, since it uses less digits than its factorization.

55124522344520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378113058624 (or 1378113058620 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 44.

Adding to 55124522344520 its reverse (2544322542155), we get a palindrome (57668844886675).

The spelling of 55124522344520 in words is "fifty-five trillion, one hundred twenty-four billion, five hundred twenty-two million, three hundred forty-four thousand, five hundred twenty".