50455721 has 8 divisors (see below), whose sum is σ = 53006400. Its totient is φ = 47934832.

The previous prime is 50455681. The next prime is 50455729. The reversal of 50455721 is 12755405.

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

It is a cyclic number.

It is not a de Polignac number, because 50455721 - 2¹⁰ = 50454697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50455729) 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, 3935 + ... + 10788.

It is an arithmetic number, because the mean of its divisors is an integer number (6625800).

Almost surely, 2^50455721 is an apocalyptic number.

It is an amenable number.

50455721 is a deficient number, since it is larger than the sum of its proper divisors (2550679).

50455721 is a wasteful number, since it uses less digits than its factorization.

50455721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14895.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 50455721 is about 7103.2190589901. The cubic root of 50455721 is about 369.5190268547.

The spelling of 50455721 in words is "fifty million, four hundred fifty-five thousand, seven hundred twenty-one".