51303424 has 22 divisors (see below), whose sum is σ = 102558794. Its totient is φ = 25651200.

The previous prime is 51303383. The next prime is 51303457. The reversal of 51303424 is 42430315.

It can be written as a sum of positive squares in only one way, i.e., 35046400 + 16257024 = 5920^2 + 4032^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51303395 and 51303404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24027 + ... + 26074.

Almost surely, 2^51303424 is an apocalyptic number.

It is an amenable number.

51303424 is a deficient number, since it is larger than the sum of its proper divisors (51255370).

51303424 is an equidigital number, since it uses as much as digits as its factorization.

51303424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50121 (or 50103 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 51303424 is about 7162.6408537634. The cubic root of 51303424 is about 371.5769654447.

Adding to 51303424 its reverse (42430315), we get a palindrome (93733739).

The spelling of 51303424 in words is "fifty-one million, three hundred three thousand, four hundred twenty-four".