50819831 has 8 divisors (see below), whose sum is σ = 52561920. Its totient is φ = 49105368.

The previous prime is 50819809. The next prime is 50819843. The reversal of 50819831 is 13891805.

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-50819831 is a prime.

It is a super-2 number, since 2×50819831² = 5165310445737122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50819791 and 50819800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50812831) 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, 3131 + ... + 10556.

It is an arithmetic number, because the mean of its divisors is an integer number (6570240).

Almost surely, 2^50819831 is an apocalyptic number.

50819831 is a deficient number, since it is larger than the sum of its proper divisors (1742089).

50819831 is a wasteful number, since it uses less digits than its factorization.

50819831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13813.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 50819831 is about 7128.8029149360. The cubic root of 50819831 is about 370.4057661941.

The spelling of 50819831 in words is "fifty million, eight hundred nineteen thousand, eight hundred thirty-one".