50021620 has 24 divisors (see below), whose sum is σ = 114595488. Its totient is φ = 18189600.

The previous prime is 50021579. The next prime is 50021651. The reversal of 50021620 is 2612005.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 50021594 and 50021603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113466 + ... + 113905.

It is an arithmetic number, because the mean of its divisors is an integer number (4774812).

Almost surely, 2^50021620 is an apocalyptic number.

It is an amenable number.

50021620 is an abundant number, since it is smaller than the sum of its proper divisors (64573868).

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

50021620 is a wasteful number, since it uses less digits than its factorization.

50021620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227391 (or 227389 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 50021620 is about 7072.5964115026. The cubic root of 50021620 is about 368.4562413865.

Adding to 50021620 its reverse (2612005), we get a palindrome (52633625).

The spelling of 50021620 in words is "fifty million, twenty-one thousand, six hundred twenty".