51532880 has 80 divisors (see below), whose sum is σ = 142919424. Its totient is φ = 16896000.

The previous prime is 51532867. The next prime is 51532889. The reversal of 51532880 is 8823515.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51532889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10880 + ... + 14880.

Almost surely, 2^51532880 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 51532880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71459712).

51532880 is an abundant number, since it is smaller than the sum of its proper divisors (91386544).

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

51532880 is a wasteful number, since it uses less digits than its factorization.

51532880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044 (or 4038 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 51532880 is about 7178.6405398237. The cubic root of 51532880 is about 372.1301044126.

The spelling of 51532880 in words is "fifty-one million, five hundred thirty-two thousand, eight hundred eighty".