50166909 has 12 divisors (see below), whose sum is σ = 78037596. Its totient is φ = 30871872.

The previous prime is 50166889. The next prime is 50166911. The reversal of 50166909 is 90966105.

50166909 is a `hidden beast` number, since 501 + 66 + 90 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3790809 + 46376100 = 1947^2 + 6810^2 .

It is not a de Polignac number, because 50166909 - 2⁵ = 50166877 is a prime.

It is a super-2 number, since 2×50166909² = 5033437517228562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50166989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214272 + ... + 214505.

It is an arithmetic number, because the mean of its divisors is an integer number (6503133).

Almost surely, 2^50166909 is an apocalyptic number.

It is an amenable number.

50166909 is a deficient number, since it is larger than the sum of its proper divisors (27870687).

50166909 is a wasteful number, since it uses less digits than its factorization.

50166909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428796 (or 428793 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 50166909 is about 7082.8602273375. The cubic root of 50166909 is about 368.8126265748.

The spelling of 50166909 in words is "fifty million, one hundred sixty-six thousand, nine hundred nine".