51608066 has 16 divisors (see below), whose sum is σ = 81765600. Its totient is φ = 24362208.

The previous prime is 51608057. The next prime is 51608069. The reversal of 51608066 is 66080615.

It is not an unprimeable number, because it can be changed into a prime (51608069) 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 7 ways as a sum of consecutive naturals, for example, 9725 + ... + 14063.

It is an arithmetic number, because the mean of its divisors is an integer number (5110350).

Almost surely, 2^51608066 is an apocalyptic number.

51608066 is a deficient number, since it is larger than the sum of its proper divisors (30157534).

51608066 is a wasteful number, since it uses less digits than its factorization.

51608066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 51608066 is about 7183.8754165144. The cubic root of 51608066 is about 372.3109946069.

The spelling of 51608066 in words is "fifty-one million, six hundred eight thousand, sixty-six".