50664421 has 8 divisors (see below), whose sum is σ = 53301600. Its totient is φ = 48086640.

The previous prime is 50664413. The next prime is 50664443. The reversal of 50664421 is 12446605.

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

It is not a de Polignac number, because 50664421 - 2³ = 50664413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50664421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50664401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13095 + ... + 16516.

It is an arithmetic number, because the mean of its divisors is an integer number (6662700).

Almost surely, 2^50664421 is an apocalyptic number.

It is an amenable number.

50664421 is a deficient number, since it is larger than the sum of its proper divisors (2637179).

50664421 is a wasteful number, since it uses less digits than its factorization.

50664421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29699.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 50664421 is about 7117.8944218076. The cubic root of 50664421 is about 370.0278065296.

The spelling of 50664421 in words is "fifty million, six hundred sixty-four thousand, four hundred twenty-one".