50666644 has 12 divisors (see below), whose sum is σ = 101333344. Its totient is φ = 21714264.

The previous prime is 50666641. The next prime is 50666657. The reversal of 50666644 is 44666605.

50666644 is nontrivially palindromic in base 9.

50666644 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50666641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904734 + ... + 904789.

Almost surely, 2^50666644 is an apocalyptic number.

It is an amenable number.

50666644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

50666644 is a wasteful number, since it uses less digits than its factorization.

50666644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809534 (or 1809532 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 50666644 is about 7118.0505758248. The cubic root of 50666644 is about 370.0332183470.

The spelling of 50666644 in words is "fifty million, six hundred sixty-six thousand, six hundred forty-four".