51204732 has 24 divisors (see below), whose sum is σ = 119624400. Its totient is φ = 17047296.

The previous prime is 51204721. The next prime is 51204763. The reversal of 51204732 is 23740215.

51204732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9994 + ... + 14222.

It is an arithmetic number, because the mean of its divisors is an integer number (4984350).

Almost surely, 2^51204732 is an apocalyptic number.

It is an amenable number.

51204732 is an abundant number, since it is smaller than the sum of its proper divisors (68419668).

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

51204732 is a wasteful number, since it uses less digits than its factorization.

51204732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245 (or 5243 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 51204732 is about 7155.7481789118. The cubic root of 51204732 is about 371.3385459191.

Adding to 51204732 its reverse (23740215), we get a palindrome (74944947).

The spelling of 51204732 in words is "fifty-one million, two hundred four thousand, seven hundred thirty-two".