51449059 has 2 divisors, whose sum is σ = 51449060. Its totient is φ = 51449058.

The previous prime is 51449051. The next prime is 51449077. The reversal of 51449059 is 95094415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51449059 - 2³ = 51449051 is a prime.

It is not a weakly prime, because it can be changed into another prime (51449051) 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, 25724529 + 25724530.

It is an arithmetic number, because the mean of its divisors is an integer number (25724530).

Almost surely, 2^51449059 is an apocalyptic number.

51449059 is a deficient number, since it is larger than the sum of its proper divisors (1).

51449059 is an equidigital number, since it uses as much as digits as its factorization.

51449059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 51449059 is about 7172.7999414455. The cubic root of 51449059 is about 371.9282317132.

The spelling of 51449059 in words is "fifty-one million, four hundred forty-nine thousand, fifty-nine".