51532332 has 48 divisors (see below), whose sum is σ = 128217600. Its totient is φ = 16061760.

The previous prime is 51532331. The next prime is 51532337. The reversal of 51532332 is 23323515.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51532331) 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, 16582 + ... + 19442.

It is an arithmetic number, because the mean of its divisors is an integer number (2671200).

Almost surely, 2^51532332 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 51532332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64108800).

51532332 is an abundant number, since it is smaller than the sum of its proper divisors (76685268).

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

51532332 is a wasteful number, since it uses less digits than its factorization.

51532332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966 (or 2964 counting only the distinct ones).

The product of its digits is 2700, while the sum is 24.

The square root of 51532332 is about 7178.6023709354. The cubic root of 51532332 is about 372.1287853323.

Adding to 51532332 its reverse (23323515), we get a palindrome (74855847).

The spelling of 51532332 in words is "fifty-one million, five hundred thirty-two thousand, three hundred thirty-two".