51150049 has 2 divisors, whose sum is σ = 51150050. Its totient is φ = 51150048.

The previous prime is 51150041. The next prime is 51150079. The reversal of 51150049 is 94005115.

51150049 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., 49843600 + 1306449 = 7060^2 + 1143^2 .

It is a cyclic number.

It is not a de Polignac number, because 51150049 - 2³ = 51150041 is a prime.

It is not a weakly prime, because it can be changed into another prime (51150041) 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, 25575024 + 25575025.

It is an arithmetic number, because the mean of its divisors is an integer number (25575025).

Almost surely, 2^51150049 is an apocalyptic number.

It is an amenable number.

51150049 is a deficient number, since it is larger than the sum of its proper divisors (1).

51150049 is an equidigital number, since it uses as much as digits as its factorization.

51150049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 51150049 is about 7151.9262440268. The cubic root of 51150049 is about 371.2063111456.

The spelling of 51150049 in words is "fifty-one million, one hundred fifty thousand, forty-nine".