51773719 has 2 divisors, whose sum is σ = 51773720. Its totient is φ = 51773718.

The previous prime is 51773699. The next prime is 51773749. The reversal of 51773719 is 91737715.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51773719 is a prime.

It is a super-2 number, since 2×51773719² = 5361035958181922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51773749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25886859 + 25886860.

It is an arithmetic number, because the mean of its divisors is an integer number (25886860).

Almost surely, 2^51773719 is an apocalyptic number.

51773719 is a deficient number, since it is larger than the sum of its proper divisors (1).

51773719 is an equidigital number, since it uses as much as digits as its factorization.

51773719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46305, while the sum is 40.

The square root of 51773719 is about 7195.3956805724. The cubic root of 51773719 is about 372.7089205339.

The spelling of 51773719 in words is "fifty-one million, seven hundred seventy-three thousand, seven hundred nineteen".