51331606 has 8 divisors (see below), whose sum is σ = 77679144. Its totient is φ = 25438560.

The previous prime is 51331603. The next prime is 51331639. The reversal of 51331606 is 60613315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51331603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113340 + ... + 113791.

It is an arithmetic number, because the mean of its divisors is an integer number (9709893).

Almost surely, 2^51331606 is an apocalyptic number.

51331606 is a deficient number, since it is larger than the sum of its proper divisors (26347538).

51331606 is a wasteful number, since it uses less digits than its factorization.

51331606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227246.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 51331606 is about 7164.6078748247. The cubic root of 51331606 is about 371.6449912174.

The spelling of 51331606 in words is "fifty-one million, three hundred thirty-one thousand, six hundred six".