50857111 has 4 divisors (see below), whose sum is σ = 51323800. Its totient is φ = 50390424.

The previous prime is 50857073. The next prime is 50857123. The reversal of 50857111 is 11175805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11175805 = 5 ⋅2235161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50857111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50857111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50857151) 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, 233181 + ... + 233398.

It is an arithmetic number, because the mean of its divisors is an integer number (12830950).

Almost surely, 2^50857111 is an apocalyptic number.

50857111 is a deficient number, since it is larger than the sum of its proper divisors (466689).

50857111 is a wasteful number, since it uses less digits than its factorization.

50857111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466688.

The product of its (nonzero) digits is 1400, while the sum is 28.

The square root of 50857111 is about 7131.4171803366. The cubic root of 50857111 is about 370.4963171431.

The spelling of 50857111 in words is "fifty million, eight hundred fifty-seven thousand, one hundred eleven".