50011857 has 48 divisors (see below), whose sum is σ = 89489280. Its totient is φ = 27037152.

The previous prime is 50011849. The next prime is 50011861. The reversal of 50011857 is 75811005.

It is not a de Polignac number, because 50011857 - 2³ = 50011849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 50011857.

It is not an unprimeable number, because it can be changed into a prime (50011957) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67863 + ... + 68595.

It is an arithmetic number, because the mean of its divisors is an integer number (1864360).

Almost surely, 2^50011857 is an apocalyptic number.

50011857 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

50011857 is a deficient number, since it is larger than the sum of its proper divisors (39477423).

50011857 is a wasteful number, since it uses less digits than its factorization.

50011857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 50011857 is about 7071.9061786763. The cubic root of 50011857 is about 368.4322686034.

The spelling of 50011857 in words is "fifty million, eleven thousand, eight hundred fifty-seven".