50646381 has 8 divisors (see below), whose sum is σ = 71082720. Its totient is φ = 31987152.

The previous prime is 50646373. The next prime is 50646397. The reversal of 50646381 is 18364605.

50646381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 50646381 - 2³ = 50646373 is a prime.

It is a super-2 number, since 2×50646381² = 5130111816794322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50646311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444210 + ... + 444323.

It is an arithmetic number, because the mean of its divisors is an integer number (8885340).

Almost surely, 2^50646381 is an apocalyptic number.

It is an amenable number.

50646381 is a deficient number, since it is larger than the sum of its proper divisors (20436339).

50646381 is a wasteful number, since it uses less digits than its factorization.

50646381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888555.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 50646381 is about 7116.6270802958. The cubic root of 50646381 is about 369.9838829113.

The spelling of 50646381 in words is "fifty million, six hundred forty-six thousand, three hundred eighty-one".