51003073 has 12 divisors (see below), whose sum is σ = 56519680. Its totient is φ = 45987480.

The previous prime is 51003019. The next prime is 51003079. The reversal of 51003073 is 37030015.

It is a de Polignac number, because none of the positive numbers 2^k-51003073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51003073.

It is not an unprimeable number, because it can be changed into a prime (51003079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13708 + ... + 17026.

Almost surely, 2^51003073 is an apocalyptic number.

It is an amenable number.

51003073 is a deficient number, since it is larger than the sum of its proper divisors (5516607).

51003073 is a wasteful number, since it uses less digits than its factorization.

51003073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468 (or 3457 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 51003073 is about 7141.6435783369. The cubic root of 51003073 is about 370.8504251461.

Adding to 51003073 its reverse (37030015), we get a palindrome (88033088).

The spelling of 51003073 in words is "fifty-one million, three thousand, seventy-three".