51648066 has 24 divisors (see below), whose sum is σ = 112310640. Its totient is φ = 17153496.

The previous prime is 51648049. The next prime is 51648097. The reversal of 51648066 is 66084615.

51648066 is a `hidden beast` number, since 5 + 1 + 648 + 0 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51648066.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25 + ... + 10163.

It is an arithmetic number, because the mean of its divisors is an integer number (4679610).

Almost surely, 2^51648066 is an apocalyptic number.

51648066 is an abundant number, since it is smaller than the sum of its proper divisors (60662574).

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

51648066 is a wasteful number, since it uses less digits than its factorization.

51648066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10430 (or 10427 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 51648066 is about 7186.6588899154. The cubic root of 51648066 is about 372.4071591216.

The spelling of 51648066 in words is "fifty-one million, six hundred forty-eight thousand, sixty-six".