50020820 has 24 divisors (see below), whose sum is σ = 107607528. Its totient is φ = 19520000.

The previous prime is 50020813. The next prime is 50020823. The reversal of 50020820 is 2802005.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 712336 + 49308484 = 844^2 + 7022^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50020823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29681 + ... + 31320.

It is an arithmetic number, because the mean of its divisors is an integer number (4483647).

Almost surely, 2^50020820 is an apocalyptic number.

It is an amenable number.

50020820 is an abundant number, since it is smaller than the sum of its proper divisors (57586708).

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

50020820 is a wasteful number, since it uses less digits than its factorization.

50020820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61051 (or 61049 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 50020820 is about 7072.5398549602. The cubic root of 50020820 is about 368.4542771254.

Adding to 50020820 its reverse (2802005), we get a palindrome (52822825).

The spelling of 50020820 in words is "fifty million, twenty thousand, eight hundred twenty".