51206803 has 2 divisors, whose sum is σ = 51206804. Its totient is φ = 51206802.

The previous prime is 51206797. The next prime is 51206807. The reversal of 51206803 is 30860215.

It is a happy number.

51206803 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 a de Polignac number, because none of the positive numbers 2^k-51206803 is a prime.

It is not a weakly prime, because it can be changed into another prime (51206807) 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, 25603401 + 25603402.

It is an arithmetic number, because the mean of its divisors is an integer number (25603402).

Almost surely, 2^51206803 is an apocalyptic number.

51206803 is a deficient number, since it is larger than the sum of its proper divisors (1).

51206803 is an equidigital number, since it uses as much as digits as its factorization.

51206803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 51206803 is about 7155.8928862861. The cubic root of 51206803 is about 371.3435521736.

The spelling of 51206803 in words is "fifty-one million, two hundred six thousand, eight hundred three".