51230773 has 4 divisors (see below), whose sum is σ = 55888128. Its totient is φ = 46573420.

The previous prime is 51230761. The next prime is 51230797. The reversal of 51230773 is 37703215.

51230773 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51230773 - 2⁹ = 51230261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51230273) 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, 2328661 + ... + 2328682.

It is an arithmetic number, because the mean of its divisors is an integer number (13972032).

Almost surely, 2^51230773 is an apocalyptic number.

It is an amenable number.

51230773 is a deficient number, since it is larger than the sum of its proper divisors (4657355).

51230773 is a wasteful number, since it uses less digits than its factorization.

51230773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657354.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 51230773 is about 7157.5675337366. The cubic root of 51230773 is about 371.4014853381.

Adding to 51230773 its reverse (37703215), we get a palindrome (88933988).

It can be divided in two parts, 51230 and 773, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 51230773 in words is "fifty-one million, two hundred thirty thousand, seven hundred seventy-three".