50664666 has 32 divisors (see below), whose sum is σ = 109932480. Its totient is φ = 15473664.

The previous prime is 50664631. The next prime is 50664673. The reversal of 50664666 is 66646605.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8506 + ... + 13178.

It is an arithmetic number, because the mean of its divisors is an integer number (3435390).

Almost surely, 2^50664666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50664666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54966240).

50664666 is an abundant number, since it is smaller than the sum of its proper divisors (59267814).

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

50664666 is a wasteful number, since it uses less digits than its factorization.

50664666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 50664666 is about 7117.9116319325. The cubic root of 50664666 is about 370.0284029815.

The spelling of 50664666 in words is "fifty million, six hundred sixty-four thousand, six hundred sixty-six".