51887113 has 2 divisors, whose sum is σ = 51887114. Its totient is φ = 51887112.

The previous prime is 51887093. The next prime is 51887123. The reversal of 51887113 is 31178815.

51887113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37847104 + 14040009 = 6152^2 + 3747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51887113 is a prime.

It is not a weakly prime, because it can be changed into another prime (51887123) 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 as a sum of consecutive naturals, namely, 25943556 + 25943557.

It is an arithmetic number, because the mean of its divisors is an integer number (25943557).

Almost surely, 2^51887113 is an apocalyptic number.

It is an amenable number.

51887113 is a deficient number, since it is larger than the sum of its proper divisors (1).

51887113 is an equidigital number, since it uses as much as digits as its factorization.

51887113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 34.

The square root of 51887113 is about 7203.2709930975. The cubic root of 51887113 is about 372.9808225663.

The spelling of 51887113 in words is "fifty-one million, eight hundred eighty-seven thousand, one hundred thirteen".