50821628 has 48 divisors (see below), whose sum is σ = 109057536. Its totient is φ = 20391360.

The previous prime is 50821627. The next prime is 50821633. The reversal of 50821628 is 82612805.

It is a junction number, because it is equal to n+sod(n) for n = 50821594 and 50821603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50821621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11225 + ... + 15087.

It is an arithmetic number, because the mean of its divisors is an integer number (2272032).

Almost surely, 2^50821628 is an apocalyptic number.

It is an amenable number.

50821628 is an abundant number, since it is smaller than the sum of its proper divisors (58235908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50821628 is a wasteful number, since it uses less digits than its factorization.

50821628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914 (or 3912 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 50821628 is about 7128.9289518132. The cubic root of 50821628 is about 370.4101320181.

The spelling of 50821628 in words is "fifty million, eight hundred twenty-one thousand, six hundred twenty-eight".