50319381 has 16 divisors (see below), whose sum is σ = 76957184. Its totient is φ = 28648944.

The previous prime is 50319349. The next prime is 50319397. The reversal of 50319381 is 18391305.

It is a happy number.

It is not a de Polignac number, because 50319381 - 2⁵ = 50319349 is a prime.

It is a super-2 number, since 2×50319381² = 5064080208446322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50319301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710 + ... + 10176.

It is an arithmetic number, because the mean of its divisors is an integer number (4809824).

Almost surely, 2^50319381 is an apocalyptic number.

It is an amenable number.

50319381 is a deficient number, since it is larger than the sum of its proper divisors (26637803).

50319381 is a wasteful number, since it uses less digits than its factorization.

50319381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8760.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 50319381 is about 7093.6155097383. The cubic root of 50319381 is about 369.1858920451.

The spelling of 50319381 in words is "fifty million, three hundred nineteen thousand, three hundred eighty-one".