55171296 has 72 divisors (see below), whose sum is σ = 163734480. Its totient is φ = 17588736.

The previous prime is 55171247. The next prime is 55171301. The reversal of 55171296 is 69217155.

55171296 is a `hidden beast` number, since 551 + 7 + 12 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55171296.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2460 + ... + 10788.

It is an arithmetic number, because the mean of its divisors is an integer number (2274090).

Almost surely, 2^55171296 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 55171296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81867240).

55171296 is an abundant number, since it is smaller than the sum of its proper divisors (108563184).

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

55171296 is a wasteful number, since it uses less digits than its factorization.

55171296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368 (or 8357 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 55171296 is about 7427.7382829499. The cubic root of 55171296 is about 380.6896433033.

The spelling of 55171296 in words is "fifty-five million, one hundred seventy-one thousand, two hundred ninety-six".