50038981 has 2 divisors, whose sum is σ = 50038982. Its totient is φ = 50038980.

The previous prime is 50038979. The next prime is 50039029. The reversal of 50038981 is 18983005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38950081 + 11088900 = 6241^2 + 3330^2 .

It is a cyclic number.

It is not a de Polignac number, because 50038981 - 2¹ = 50038979 is a prime.

It is a super-2 number, since 2×50038981² = 5007799239036722, which contains 22 as substring.

Together with 50038979, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50038181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25019490 + 25019491.

It is an arithmetic number, because the mean of its divisors is an integer number (25019491).

Almost surely, 2^50038981 is an apocalyptic number.

It is an amenable number.

50038981 is a deficient number, since it is larger than the sum of its proper divisors (1).

50038981 is an equidigital number, since it uses as much as digits as its factorization.

50038981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 50038981 is about 7073.8236477877. The cubic root of 50038981 is about 368.4988631496.

The spelling of 50038981 in words is "fifty million, thirty-eight thousand, nine hundred eighty-one".