51532608 has 56 divisors (see below), whose sum is σ = 137802112. Its totient is φ = 16994304.

The previous prime is 51532603. The next prime is 51532609. The reversal of 51532608 is 80623515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51532603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17241 + ... + 20007.

It is an arithmetic number, because the mean of its divisors is an integer number (2460752).

Almost surely, 2^51532608 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 51532608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68901056).

51532608 is an abundant number, since it is smaller than the sum of its proper divisors (86269504).

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

51532608 is a wasteful number, since it uses less digits than its factorization.

51532608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879 (or 2869 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 51532608 is about 7178.6215947074. The cubic root of 51532608 is about 372.1294496878.

The spelling of 51532608 in words is "fifty-one million, five hundred thirty-two thousand, six hundred eight".