51304232 has 32 divisors (see below), whose sum is σ = 116406720. Its totient is φ = 20693760.

The previous prime is 51304223. The next prime is 51304241. The reversal of 51304232 is 23240315.

It is a happy number.

51304232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51304223) and next prime (51304241).

It is a super-2 number, since 2×51304232² = 5264248442219648, which contains 22 as substring.

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, 25994 + ... + 27897.

It is an arithmetic number, because the mean of its divisors is an integer number (3637710).

Almost surely, 2^51304232 is an apocalyptic number.

It is an amenable number.

51304232 is an abundant number, since it is smaller than the sum of its proper divisors (65102488).

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

51304232 is a wasteful number, since it uses less digits than its factorization.

51304232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53921 (or 53917 counting only the distinct ones).

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

The square root of 51304232 is about 7162.6972573186. The cubic root of 51304232 is about 371.5789161437.

Adding to 51304232 its reverse (23240315), we get a palindrome (74544547).

The spelling of 51304232 in words is "fifty-one million, three hundred four thousand, two hundred thirty-two".