51773899 has 2 divisors, whose sum is σ = 51773900. Its totient is φ = 51773898.

The previous prime is 51773893. The next prime is 51773921. The reversal of 51773899 is 99837715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51773899 - 2⁵ = 51773867 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51773893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25886949 + 25886950.

It is an arithmetic number, because the mean of its divisors is an integer number (25886950).

Almost surely, 2^51773899 is an apocalyptic number.

51773899 is a deficient number, since it is larger than the sum of its proper divisors (1).

51773899 is an equidigital number, since it uses as much as digits as its factorization.

51773899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 49.

The square root of 51773899 is about 7195.4081885603. The cubic root of 51773899 is about 372.7093524617.

The spelling of 51773899 in words is "fifty-one million, seven hundred seventy-three thousand, eight hundred ninety-nine".