51303224 has 16 divisors (see below), whose sum is σ = 109935600. Its totient is φ = 21987072.

The previous prime is 51303221. The next prime is 51303227. The reversal of 51303224 is 42230315.

It is a happy number.

51303224 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 (51303221) and next prime (51303227).

It is a junction number, because it is equal to n+sod(n) for n = 51303196 and 51303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51303221) 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 3 ways as a sum of consecutive naturals, for example, 458009 + ... + 458120.

It is an arithmetic number, because the mean of its divisors is an integer number (6870975).

Almost surely, 2^51303224 is an apocalyptic number.

It is an amenable number.

51303224 is an abundant number, since it is smaller than the sum of its proper divisors (58632376).

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

51303224 is a wasteful number, since it uses less digits than its factorization.

51303224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916142 (or 916138 counting only the distinct ones).

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

The square root of 51303224 is about 7162.6268924187. The cubic root of 51303224 is about 371.5764825953.

Adding to 51303224 its reverse (42230315), we get a palindrome (93533539).

The spelling of 51303224 in words is "fifty-one million, three hundred three thousand, two hundred twenty-four".