50570821 has 8 divisors (see below), whose sum is σ = 58492224. Its totient is φ = 42823680.

The previous prime is 50570803. The next prime is 50570873. The reversal of 50570821 is 12807505.

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 50570821 - 2⁵ = 50570789 is a prime.

It is a super-2 number, since 2×50570821² = 5114815873228082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50570821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50570621) 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, 42940 + ... + 44101.

It is an arithmetic number, because the mean of its divisors is an integer number (7311528).

Almost surely, 2^50570821 is an apocalyptic number.

It is an amenable number.

50570821 is a deficient number, since it is larger than the sum of its proper divisors (7921403).

50570821 is an equidigital number, since it uses as much as digits as its factorization.

50570821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87131.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 50570821 is about 7111.3164041547. The cubic root of 50570821 is about 369.7997967317.

The spelling of 50570821 in words is "fifty million, five hundred seventy thousand, eight hundred twenty-one".