51046819 has 2 divisors, whose sum is σ = 51046820. Its totient is φ = 51046818.

The previous prime is 51046817. The next prime is 51046847. The reversal of 51046819 is 91864015.

51046819 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 is a cyclic number.

It is not a de Polignac number, because 51046819 - 2¹ = 51046817 is a prime.

It is a super-2 number, since 2×51046819² = 5211555460037522, which contains 22 as substring.

Together with 51046817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51046817) 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, 25523409 + 25523410.

It is an arithmetic number, because the mean of its divisors is an integer number (25523410).

Almost surely, 2^51046819 is an apocalyptic number.

51046819 is a deficient number, since it is larger than the sum of its proper divisors (1).

51046819 is an equidigital number, since it uses as much as digits as its factorization.

51046819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 51046819 is about 7144.7056622369. The cubic root of 51046819 is about 370.9564225933.

The spelling of 51046819 in words is "fifty-one million, forty-six thousand, eight hundred nineteen".