50502381 has 4 divisors (see below), whose sum is σ = 67336512. Its totient is φ = 33668252.

The previous prime is 50502377. The next prime is 50502391. The reversal of 50502381 is 18320505.

50502381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50502381 - 2² = 50502377 is a prime.

It is a super-2 number, since 2×50502381² = 5100980973338322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50502301) 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 3 ways as a sum of consecutive naturals, for example, 8417061 + ... + 8417066.

It is an arithmetic number, because the mean of its divisors is an integer number (16834128).

Almost surely, 2^50502381 is an apocalyptic number.

It is an amenable number.

50502381 is a deficient number, since it is larger than the sum of its proper divisors (16834131).

50502381 is a wasteful number, since it uses less digits than its factorization.

50502381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16834130.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 50502381 is about 7106.5027263767. The cubic root of 50502381 is about 369.6328986172.

Adding to 50502381 its reverse (18320505), we get a palindrome (68822886).

The spelling of 50502381 in words is "fifty million, five hundred two thousand, three hundred eighty-one".