50606991 has 16 divisors (see below), whose sum is σ = 75160320. Its totient is φ = 33653880.

The previous prime is 50606929. The next prime is 50606999. The reversal of 50606991 is 19960605.

50606991 is a `hidden beast` number, since 506 + 0 + 69 + 91 = 666.

It is not a de Polignac number, because 50606991 - 2⁷ = 50606863 is a prime.

It is a super-2 number, since 2×50606991² = 5122135076148162, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50606999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9846 + ... + 14076.

It is an arithmetic number, because the mean of its divisors is an integer number (4697520).

Almost surely, 2^50606991 is an apocalyptic number.

50606991 is a deficient number, since it is larger than the sum of its proper divisors (24553329).

50606991 is a wasteful number, since it uses less digits than its factorization.

50606991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683 (or 4677 counting only the distinct ones).

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

The square root of 50606991 is about 7113.8590792902. The cubic root of 50606991 is about 369.8879402550.

The spelling of 50606991 in words is "fifty million, six hundred six thousand, nine hundred ninety-one".