50831731 has 2 divisors, whose sum is σ = 50831732. Its totient is φ = 50831730.

The previous prime is 50831701. The next prime is 50831749. The reversal of 50831731 is 13713805.

50831731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50831731 - 2⁷ = 50831603 is a prime.

It is a super-2 number, since 2×50831731² = 5167729752912722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50831731.

It is not a weakly prime, because it can be changed into another prime (50831701) by changing a digit.

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 as a sum of consecutive naturals, namely, 25415865 + 25415866.

It is an arithmetic number, because the mean of its divisors is an integer number (25415866).

Almost surely, 2^50831731 is an apocalyptic number.

50831731 is a deficient number, since it is larger than the sum of its proper divisors (1).

50831731 is an equidigital number, since it uses as much as digits as its factorization.

50831731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 50831731 is about 7129.6375083170. The cubic root of 50831731 is about 370.4346754114.

The spelling of 50831731 in words is "fifty million, eight hundred thirty-one thousand, seven hundred thirty-one".