51602987 has 2 divisors, whose sum is σ = 51602988. Its totient is φ = 51602986.

The previous prime is 51602981. The next prime is 51603017. The reversal of 51602987 is 78920615.

51602987 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 51602987 - 2¹² = 51598891 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51602987.

It is not a weakly prime, because it can be changed into another prime (51602981) 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, 25801493 + 25801494.

It is an arithmetic number, because the mean of its divisors is an integer number (25801494).

Almost surely, 2^51602987 is an apocalyptic number.

51602987 is a deficient number, since it is larger than the sum of its proper divisors (1).

51602987 is an equidigital number, since it uses as much as digits as its factorization.

51602987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 51602987 is about 7183.5219078110. The cubic root of 51602987 is about 372.2987805628.

The spelling of 51602987 in words is "fifty-one million, six hundred two thousand, nine hundred eighty-seven".