51632406 has 24 divisors (see below), whose sum is σ = 127851984. Its totient is φ = 14752080.

The previous prime is 51632393. The next prime is 51632429. The reversal of 51632406 is 60423615.

51632406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51632406.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 204765 + ... + 205016.

It is an arithmetic number, because the mean of its divisors is an integer number (5327166).

Almost surely, 2^51632406 is an apocalyptic number.

51632406 is an abundant number, since it is smaller than the sum of its proper divisors (76219578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51632406 is a wasteful number, since it uses less digits than its factorization.

51632406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409796 (or 409793 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 51632406 is about 7185.5692885115. The cubic root of 51632406 is about 372.3695166302.

It can be divided in two parts, 5163 and 2406, that added together give a square (7569 = 87²).

The spelling of 51632406 in words is "fifty-one million, six hundred thirty-two thousand, four hundred six".