50971668 has 24 divisors (see below), whose sum is σ = 129746400. Its totient is φ = 15445920.

The previous prime is 50971667. The next prime is 50971691. The reversal of 50971668 is 86617905.

It is a super-2 number, since 2×50971668² = 5196221877404448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50971663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192943 + ... + 193206.

It is an arithmetic number, because the mean of its divisors is an integer number (5406100).

Almost surely, 2^50971668 is an apocalyptic number.

It is an amenable number.

50971668 is an abundant number, since it is smaller than the sum of its proper divisors (78774732).

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

50971668 is a wasteful number, since it uses less digits than its factorization.

50971668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386167 (or 386165 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 50971668 is about 7139.4445162071. Note that the first 3 decimals coincide. The cubic root of 50971668 is about 370.7742928128.

The spelling of 50971668 in words is "fifty million, nine hundred seventy-one thousand, six hundred sixty-eight".