55432960 has 144 divisors (see below), whose sum is σ = 150700032. Its totient is φ = 19353600.

The previous prime is 55432939. The next prime is 55432987. The reversal of 55432960 is 6923455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436417 + ... + 436543.

It is an arithmetic number, because the mean of its divisors is an integer number (1046528).

Almost surely, 2^55432960 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 55432960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75350016).

55432960 is an abundant number, since it is smaller than the sum of its proper divisors (95267072).

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

55432960 is a wasteful number, since it uses less digits than its factorization.

55432960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 55432960 is about 7445.3314231134. The cubic root of 55432960 is about 381.2905337178.

The spelling of 55432960 in words is "fifty-five million, four hundred thirty-two thousand, nine hundred sixty".