50286391 has 4 divisors (see below), whose sum is σ = 53244432. Its totient is φ = 47328352.

The previous prime is 50286373. The next prime is 50286403. The reversal of 50286391 is 19368205.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50286391 - 2⁵ = 50286359 is a prime.

It is a super-2 number, since 2×50286391² = 5057442239609762, 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 (50286361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478995 + ... + 1479028.

It is an arithmetic number, because the mean of its divisors is an integer number (13311108).

Almost surely, 2^50286391 is an apocalyptic number.

50286391 is a deficient number, since it is larger than the sum of its proper divisors (2958041).

50286391 is a wasteful number, since it uses less digits than its factorization.

50286391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958040.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 50286391 is about 7091.2897980551. The cubic root of 50286391 is about 369.1051934821.

The spelling of 50286391 in words is "fifty million, two hundred eighty-six thousand, three hundred ninety-one".