51879049 has 2 divisors, whose sum is σ = 51879050. Its totient is φ = 51879048.

The previous prime is 51879043. The next prime is 51879059. The reversal of 51879049 is 94097815.

51879049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36723600 + 15155449 = 6060^2 + 3893^2 .

It is a cyclic number.

It is not a de Polignac number, because 51879049 - 2¹⁵ = 51846281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51878996 and 51879014.

It is not a weakly prime, because it can be changed into another prime (51879043) 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, 25939524 + 25939525.

It is an arithmetic number, because the mean of its divisors is an integer number (25939525).

Almost surely, 2^51879049 is an apocalyptic number.

It is an amenable number.

51879049 is a deficient number, since it is larger than the sum of its proper divisors (1).

51879049 is an equidigital number, since it uses as much as digits as its factorization.

51879049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 51879049 is about 7202.7112256427. The cubic root of 51879049 is about 372.9614993792.

The spelling of 51879049 in words is "fifty-one million, eight hundred seventy-nine thousand, forty-nine".