50665556 has 6 divisors (see below), whose sum is σ = 88664730. Its totient is φ = 25332776.

The previous prime is 50665547. The next prime is 50665561. The reversal of 50665556 is 65556605.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47389456 + 3276100 = 6884^2 + 1810^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6333191 + ... + 6333198.

It is an arithmetic number, because the mean of its divisors is an integer number (14777455).

Almost surely, 2^50665556 is an apocalyptic number.

It is an amenable number.

50665556 is a deficient number, since it is larger than the sum of its proper divisors (37999174).

50665556 is a wasteful number, since it uses less digits than its factorization.

50665556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12666393 (or 12666391 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 50665556 is about 7117.9741499952. The cubic root of 50665556 is about 370.0305696681.

The spelling of 50665556 in words is "fifty million, six hundred sixty-five thousand, five hundred fifty-six".