55503055321520 has 40 divisors (see below), whose sum is σ = 129866543802384. Its totient is φ = 22059813065472.

The previous prime is 55503055321517. The next prime is 55503055321577. The reversal of 55503055321520 is 2512355030555.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×55503055321520² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2209503974 + ... + 2209529093.

Almost surely, 2^{55503055321520} is an apocalyptic number.

It is an amenable number.

55503055321520 is an abundant number, since it is smaller than the sum of its proper divisors (74363488480864).

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

55503055321520 is a wasteful number, since it uses less digits than its factorization.

55503055321520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4419033237 (or 4419033231 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 41.

The spelling of 55503055321520 in words is "fifty-five trillion, five hundred three billion, fifty-five million, three hundred twenty-one thousand, five hundred twenty".