51203133 has 12 divisors (see below), whose sum is σ = 78310908. Its totient is φ = 32127360.

The previous prime is 51203123. The next prime is 51203147. The reversal of 51203133 is 33130215.

51203133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 35497764 + 15705369 = 5958^2 + 3963^2 .

It is not a de Polignac number, because 51203133 - 2⁹ = 51202621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51203123) 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 11 ways as a sum of consecutive naturals, for example, 167178 + ... + 167483.

It is an arithmetic number, because the mean of its divisors is an integer number (6525909).

Almost surely, 2^51203133 is an apocalyptic number.

It is an amenable number.

51203133 is a deficient number, since it is larger than the sum of its proper divisors (27107775).

51203133 is a wasteful number, since it uses less digits than its factorization.

51203133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334684 (or 334681 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 51203133 is about 7155.6364496808. The cubic root of 51203133 is about 371.3346805438.

Adding to 51203133 its reverse (33130215), we get a palindrome (84333348).

The spelling of 51203133 in words is "fifty-one million, two hundred three thousand, one hundred thirty-three".