50217215 has 4 divisors (see below), whose sum is σ = 60260664. Its totient is φ = 40173768.

The previous prime is 50217199. The next prime is 50217217. The reversal of 50217215 is 51271205.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51271205 = 5 ⋅10254241.

It is a cyclic number.

It is not a de Polignac number, because 50217215 - 2⁴ = 50217199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50217217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5021717 + ... + 5021726.

It is an arithmetic number, because the mean of its divisors is an integer number (15065166).

Almost surely, 2^50217215 is an apocalyptic number.

50217215 is a deficient number, since it is larger than the sum of its proper divisors (10043449).

50217215 is a wasteful number, since it uses less digits than its factorization.

50217215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10043448.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 50217215 is about 7086.4105864676. The cubic root of 50217215 is about 368.9358637854.

The spelling of 50217215 in words is "fifty million, two hundred seventeen thousand, two hundred fifteen".