51332430 has 16 divisors (see below), whose sum is σ = 123197904. Its totient is φ = 13688640.

The previous prime is 51332423. The next prime is 51332447. The reversal of 51332430 is 3423315.

51332430 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 = 51332397 and 51332406.

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, 855511 + ... + 855570.

It is an arithmetic number, because the mean of its divisors is an integer number (7699869).

Almost surely, 2^51332430 is an apocalyptic number.

51332430 is an abundant number, since it is smaller than the sum of its proper divisors (71865474).

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

51332430 is a wasteful number, since it uses less digits than its factorization.

51332430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711091.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 51332430 is about 7164.6653794856. The cubic root of 51332430 is about 371.6469798157.

Adding to 51332430 its reverse (3423315), we get a palindrome (54755745).

The spelling of 51332430 in words is "fifty-one million, three hundred thirty-two thousand, four hundred thirty".