55505488835520 has 224 divisors, whose sum is σ = 195817393520640. Its totient is φ = 14800982676480.

The previous prime is 55505488835471. The next prime is 55505488835549. The reversal of 55505488835520 is 2553888450555.

55505488835520 is a `hidden beast` number, since 5 + 5 + 5 + 0 + 5 + 488 + 83 + 55 + 20 = 666.

It is a super-2 number, since 2×55505488835520² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 324009409 + ... + 324180671.

Almost surely, 2^{55505488835520} is an apocalyptic number.

It is an amenable number.

55505488835520 is an abundant number, since it is smaller than the sum of its proper divisors (140311904685120).

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

55505488835520 is a wasteful number, since it uses less digits than its factorization.

55505488835520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208800 (or 208784 counting only the distinct ones).

The product of its (nonzero) digits is 192000000, while the sum is 63.

The spelling of 55505488835520 in words is "fifty-five trillion, five hundred five billion, four hundred eighty-eight million, eight hundred thirty-five thousand, five hundred twenty".