50731000 has 64 divisors (see below), whose sum is σ = 120163680. Its totient is φ = 20044800.

The previous prime is 50730997. The next prime is 50731027. The reversal of 50731000 is 13705.

50731000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×50731000² = 5147268722000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96739 + ... + 97261.

Almost surely, 2^50731000 is an apocalyptic number.

50731000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50731000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60081840).

50731000 is an abundant number, since it is smaller than the sum of its proper divisors (69432680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50731000 is a wasteful number, since it uses less digits than its factorization.

50731000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 50731000 is about 7122.5697609781. The cubic root of 50731000 is about 370.1898222476.

Adding to 50731000 its reverse (13705), we get a palindrome (50744705).

The spelling of 50731000 in words is "fifty million, seven hundred thirty-one thousand".