51232832 has 126 divisors (see below), whose sum is σ = 129389886. Its totient is φ = 19998720.

The previous prime is 51232817. The next prime is 51232837. The reversal of 51232832 is 23823215.

It can be written as a sum of positive squares in only one way, i.e., 48219136 + 3013696 = 6944^2 + 1736^2 .

It is not an unprimeable number, because it can be changed into a prime (51232837) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1652657 + ... + 1652687.

Almost surely, 2^51232832 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 51232832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64694943).

51232832 is an abundant number, since it is smaller than the sum of its proper divisors (78157054).

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

51232832 is a wasteful number, since it uses less digits than its factorization.

51232832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 57 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 51232832 is about 7157.7113660723. The cubic root of 51232832 is about 371.4064608985.

The spelling of 51232832 in words is "fifty-one million, two hundred thirty-two thousand, eight hundred thirty-two".