51864063 has 16 divisors (see below), whose sum is σ = 71005440. Its totient is φ = 33655104.

The previous prime is 51864061. The next prime is 51864083. The reversal of 51864063 is 36046815.

It is not a de Polignac number, because 51864063 - 2¹ = 51864061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51864061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52270 + ... + 53252.

It is an arithmetic number, because the mean of its divisors is an integer number (4437840).

Almost surely, 2^51864063 is an apocalyptic number.

51864063 is a deficient number, since it is larger than the sum of its proper divisors (19141377).

51864063 is a wasteful number, since it uses less digits than its factorization.

51864063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 51864063 is about 7201.6708477964. The cubic root of 51864063 is about 372.9255841790.

The spelling of 51864063 in words is "fifty-one million, eight hundred sixty-four thousand, sixty-three".