51336432 has 60 divisors (see below), whose sum is σ = 164198320. Its totient is φ = 14667264.

The previous prime is 51336419. The next prime is 51336433. The reversal of 51336432 is 23463315.

It is a happy number.

51336432 is a `hidden beast` number, since 5 + 13 + 3 + 643 + 2 = 666.

51336432 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 = 51336396 and 51336405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51336433) 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 11 ways as a sum of consecutive naturals, for example, 24457 + ... + 26472.

Almost surely, 2^51336432 is an apocalyptic number.

It is an amenable number.

51336432 is an abundant number, since it is smaller than the sum of its proper divisors (112861888).

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

51336432 is a wasteful number, since it uses less digits than its factorization.

51336432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50950 (or 50941 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 51336432 is about 7164.9446613355. The cubic root of 51336432 is about 371.6566377296.

Adding to 51336432 its reverse (23463315), we get a palindrome (74799747).

The spelling of 51336432 in words is "fifty-one million, three hundred thirty-six thousand, four hundred thirty-two".