50163731 has 4 divisors (see below), whose sum is σ = 50341272. Its totient is φ = 49986192.

The previous prime is 50163709. The next prime is 50163733. The reversal of 50163731 is 13736105.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13736105 = 5 ⋅2747221.

It is a cyclic number.

It is not a de Polignac number, because 50163731 - 2¹⁸ = 49901587 is a prime.

It is a super-2 number, since 2×50163731² = 5032799815680722, which contains 22 as substring.

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 50163731.

It is not an unprimeable number, because it can be changed into a prime (50163733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88346 + ... + 88911.

It is an arithmetic number, because the mean of its divisors is an integer number (12585318).

Almost surely, 2^50163731 is an apocalyptic number.

50163731 is a deficient number, since it is larger than the sum of its proper divisors (177541).

50163731 is a wasteful number, since it uses less digits than its factorization.

50163731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177540.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 50163731 is about 7082.6358793884. The cubic root of 50163731 is about 368.8048384976.

Adding to 50163731 its reverse (13736105), we get a palindrome (63899836).

The spelling of 50163731 in words is "fifty million, one hundred sixty-three thousand, seven hundred thirty-one".