50670221 has 8 divisors (see below), whose sum is σ = 59905920. Its totient is φ = 41933808.

The previous prime is 50670209. The next prime is 50670223. The reversal of 50670221 is 12207605.

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

It is a de Polignac number, because none of the positive numbers 2^k-50670221 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 (50670223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124601 + ... + 125006.

It is an arithmetic number, because the mean of its divisors is an integer number (7488240).

Almost surely, 2^50670221 is an apocalyptic number.

It is an amenable number.

50670221 is a deficient number, since it is larger than the sum of its proper divisors (9235699).

50670221 is a wasteful number, since it uses less digits than its factorization.

50670221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249643.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 50670221 is about 7118.3018340051. The cubic root of 50670221 is about 370.0419260988.

Adding to 50670221 its reverse (12207605), we get a palindrome (62877826).

The spelling of 50670221 in words is "fifty million, six hundred seventy thousand, two hundred twenty-one".