55172412000 has 432 divisors, whose sum is σ = 208041698592. Its totient is φ = 13844582400.

The previous prime is 55172411989. The next prime is 55172412023. The reversal of 55172412000 is 21427155.

55172412000 is a `hidden beast` number, since 5 + 517 + 24 + 120 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10401349 + ... + 10406651.

It is an arithmetic number, because the mean of its divisors is an integer number (481578006).

Almost surely, 2^55172412000 is an apocalyptic number.

55172412000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55172412000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104020849296).

55172412000 is an abundant number, since it is smaller than the sum of its proper divisors (152869286592).

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

55172412000 is a wasteful number, since it uses less digits than its factorization.

55172412000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368 (or 5330 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

Adding to 55172412000 its reverse (21427155), we get a palindrome (55193839155).

The spelling of 55172412000 in words is "fifty-five billion, one hundred seventy-two million, four hundred twelve thousand".