51045019 has 2 divisors, whose sum is σ = 51045020. Its totient is φ = 51045018.

The previous prime is 51045011. The next prime is 51045023. The reversal of 51045019 is 91054015.

51045019 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 is a cyclic number.

It is not a de Polignac number, because 51045019 - 2³ = 51045011 is a prime.

It is a super-2 number, since 2×51045019² = 5211187929420722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51044984 and 51045002.

It is not a weakly prime, because it can be changed into another prime (51045011) 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, 25522509 + 25522510.

It is an arithmetic number, because the mean of its divisors is an integer number (25522510).

Almost surely, 2^51045019 is an apocalyptic number.

51045019 is a deficient number, since it is larger than the sum of its proper divisors (1).

51045019 is an equidigital number, since it uses as much as digits as its factorization.

51045019 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 51045019 is about 7144.5796937259. The cubic root of 51045019 is about 370.9520623516.

The spelling of 51045019 in words is "fifty-one million, forty-five thousand, nineteen".