50000005381 has 8 divisors (see below), whose sum is σ = 50797696320. Its totient is φ = 49208074368.

The previous prime is 50000005373. The next prime is 50000005387. The reversal of 50000005381 is 18350000005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50000005381 - 2³ = 50000005373 is a prime.

It is a super-2 number, since 2×50000005381² (a number of 22 digits) 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 (50000005387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422481 + ... + 1457206.

It is an arithmetic number, because the mean of its divisors is an integer number (6349712040).

Almost surely, 2^50000005381 is an apocalyptic number.

It is an amenable number.

50000005381 is a deficient number, since it is larger than the sum of its proper divisors (797690939).

50000005381 is a wasteful number, since it uses less digits than its factorization.

50000005381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879963.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 50000005381 its reverse (18350000005), we get a palindrome (68350005386).

The spelling of 50000005381 in words is "fifty billion, five thousand, three hundred eighty-one".