51632786 has 8 divisors (see below), whose sum is σ = 77589900. Its totient is φ = 25769488.

The previous prime is 51632783. The next prime is 51632803. The reversal of 51632786 is 68723615.

51632786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43309561 + 8323225 = 6581^2 + 2885^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51632783) 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 in 3 ways as a sum of consecutive naturals, for example, 22061 + ... + 24288.

Almost surely, 2^51632786 is an apocalyptic number.

51632786 is a deficient number, since it is larger than the sum of its proper divisors (25957114).

51632786 is a wasteful number, since it uses less digits than its factorization.

51632786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46908.

The product of its digits is 60480, while the sum is 38.

The square root of 51632786 is about 7185.5957303483. The cubic root of 51632786 is about 372.3704301397.

The spelling of 51632786 in words is "fifty-one million, six hundred thirty-two thousand, seven hundred eighty-six".