51701851 has 2 divisors, whose sum is σ = 51701852. Its totient is φ = 51701850.

The previous prime is 51701803. The next prime is 51701857. The reversal of 51701851 is 15810715.

51701851 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 51701851 - 2⁹ = 51701339 is a prime.

It is not a weakly prime, because it can be changed into another prime (51701857) 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, 25850925 + 25850926.

It is an arithmetic number, because the mean of its divisors is an integer number (25850926).

Almost surely, 2^51701851 is an apocalyptic number.

51701851 is a deficient number, since it is larger than the sum of its proper divisors (1).

51701851 is an equidigital number, since it uses as much as digits as its factorization.

51701851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 51701851 is about 7190.3999193369. The cubic root of 51701851 is about 372.5363860978.

It can be divided in two parts, 5170 and 1851, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 51701851 in words is "fifty-one million, seven hundred one thousand, eight hundred fifty-one".