50001731 has 4 divisors (see below), whose sum is σ = 53848032. Its totient is φ = 46155432.

The previous prime is 50001727. The next prime is 50001781. The reversal of 50001731 is 13710005.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50001731 - 2² = 50001727 is a prime.

It is a super-2 number, since 2×50001731² = 5000346205992722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50001781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1923131 + ... + 1923156.

It is an arithmetic number, because the mean of its divisors is an integer number (13462008).

Almost surely, 2^50001731 is an apocalyptic number.

50001731 is a deficient number, since it is larger than the sum of its proper divisors (3846301).

50001731 is a wasteful number, since it uses less digits than its factorization.

50001731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846300.

The product of its (nonzero) digits is 105, while the sum is 17.

The square root of 50001731 is about 7071.1902109899. The cubic root of 50001731 is about 368.4074011873.

Adding to 50001731 its reverse (13710005), we get a palindrome (63711736).

The spelling of 50001731 in words is "fifty million, one thousand, seven hundred thirty-one".