51303012 has 12 divisors (see below), whose sum is σ = 119707056. Its totient is φ = 17101000.

The previous prime is 51302989. The next prime is 51303061. The reversal of 51303012 is 21030315.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 51302982 and 51303000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2137614 + ... + 2137637.

It is an arithmetic number, because the mean of its divisors is an integer number (9975588).

Almost surely, 2^51303012 is an apocalyptic number.

It is an amenable number.

51303012 is an abundant number, since it is smaller than the sum of its proper divisors (68404044).

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

51303012 is a wasteful number, since it uses less digits than its factorization.

51303012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275258 (or 4275256 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 51303012 is about 7162.6120933637. The cubic root of 51303012 is about 371.5759707735.

Adding to 51303012 its reverse (21030315), we get a palindrome (72333327).

The spelling of 51303012 in words is "fifty-one million, three hundred three thousand, twelve".