51340232 has 16 divisors (see below), whose sum is σ = 100448640. Its totient is φ = 24553936.

The previous prime is 51340229. The next prime is 51340249. The reversal of 51340232 is 23204315.

It is a happy number.

51340232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 139328 + ... + 139695.

It is an arithmetic number, because the mean of its divisors is an integer number (6278040).

Almost surely, 2^51340232 is an apocalyptic number.

It is an amenable number.

51340232 is a deficient number, since it is larger than the sum of its proper divisors (49108408).

51340232 is a wasteful number, since it uses less digits than its factorization.

51340232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279052 (or 279048 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 51340232 is about 7165.2098364249. The cubic root of 51340232 is about 371.6658076980.

Adding to 51340232 its reverse (23204315), we get a palindrome (74544547).

The spelling of 51340232 in words is "fifty-one million, three hundred forty thousand, two hundred thirty-two".