51372773 has 2 divisors, whose sum is σ = 51372774. Its totient is φ = 51372772.

The previous prime is 51372757. The next prime is 51372779. The reversal of 51372773 is 37727315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44649124 + 6723649 = 6682^2 + 2593^2 .

It is a cyclic number.

It is not a de Polignac number, because 51372773 - 2⁴ = 51372757 is a prime.

It is equal to p_3078449 and since 51372773 and 3078449 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51372779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25686386 + 25686387.

It is an arithmetic number, because the mean of its divisors is an integer number (25686387).

Almost surely, 2^51372773 is an apocalyptic number.

It is an amenable number.

51372773 is a deficient number, since it is larger than the sum of its proper divisors (1).

51372773 is an equidigital number, since it uses as much as digits as its factorization.

51372773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30870, while the sum is 35.

The square root of 51372773 is about 7167.4802406425. The cubic root of 51372773 is about 371.7443154765.

The spelling of 51372773 in words is "fifty-one million, three hundred seventy-two thousand, seven hundred seventy-three".