50856521 has 8 divisors (see below), whose sum is σ = 54544320. Its totient is φ = 47269872.

The previous prime is 50856511. The next prime is 50856527. The reversal of 50856521 is 12565805.

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

It is not a de Polignac number, because 50856521 - 2¹⁴ = 50840137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50856527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24245 + ... + 26258.

It is an arithmetic number, because the mean of its divisors is an integer number (6818040).

Almost surely, 2^50856521 is an apocalyptic number.

It is an amenable number.

50856521 is a deficient number, since it is larger than the sum of its proper divisors (3687799).

50856521 is a wasteful number, since it uses less digits than its factorization.

50856521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50575.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 50856521 is about 7131.3758139647. The cubic root of 50856521 is about 370.4948844121.

The spelling of 50856521 in words is "fifty million, eight hundred fifty-six thousand, five hundred twenty-one".