55355473872480 has 768 divisors, whose sum is σ = 192092844625920. Its totient is φ = 13343244288000.

The previous prime is 55355473872467. The next prime is 55355473872493. The reversal of 55355473872480 is 8427837455355.

It is an interprime number because it is at equal distance from previous prime (55355473872467) and next prime (55355473872493).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14956894630 + ... + 14956898330.

It is an arithmetic number, because the mean of its divisors is an integer number (250120891440).

Almost surely, 2^{55355473872480} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55355473872480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96046422312960).

55355473872480 is an abundant number, since it is smaller than the sum of its proper divisors (136737370753440).

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

55355473872480 is a wasteful number, since it uses less digits than its factorization.

55355473872480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503 (or 4495 counting only the distinct ones).

The product of its (nonzero) digits is 564480000, while the sum is 66.

The spelling of 55355473872480 in words is "fifty-five trillion, three hundred fifty-five billion, four hundred seventy-three million, eight hundred seventy-two thousand, four hundred eighty".