50857897 has 8 divisors (see below), whose sum is σ = 53968896. Its totient is φ = 47760192.

The previous prime is 50857883. The next prime is 50857903. The reversal of 50857897 is 79875805.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50857897 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 50857897.

It is not an unprimeable number, because it can be changed into a prime (50857817) 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, 5208 + ... + 11350.

It is an arithmetic number, because the mean of its divisors is an integer number (6746112).

Almost surely, 2^50857897 is an apocalyptic number.

It is an amenable number.

50857897 is a deficient number, since it is larger than the sum of its proper divisors (3110999).

50857897 is a wasteful number, since it uses less digits than its factorization.

50857897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647.

The product of its (nonzero) digits is 705600, while the sum is 49.

The square root of 50857897 is about 7131.4722883848. The cubic root of 50857897 is about 370.4982258149.

The spelling of 50857897 in words is "fifty million, eight hundred fifty-seven thousand, eight hundred ninety-seven".