51472332 has 72 divisors (see below), whose sum is σ = 137592000. Its totient is φ = 16197888.

The previous prime is 51472331. The next prime is 51472339. The reversal of 51472332 is 23327415.

51472332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51472296 and 51472305.

It is not an unprimeable number, because it can be changed into a prime (51472331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48544 + ... + 49592.

It is an arithmetic number, because the mean of its divisors is an integer number (1911000).

Almost surely, 2^51472332 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 51472332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68796000).

51472332 is an abundant number, since it is smaller than the sum of its proper divisors (86119668).

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

51472332 is a wasteful number, since it uses less digits than its factorization.

51472332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135 (or 1130 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 51472332 is about 7174.4220673166. The cubic root of 51472332 is about 371.9843038816.

Adding to 51472332 its reverse (23327415), we get a palindrome (74799747).

The spelling of 51472332 in words is "fifty-one million, four hundred seventy-two thousand, three hundred thirty-two".