50499820 has 48 divisors (see below), whose sum is σ = 124488000. Its totient is φ = 16844544.

The previous prime is 50499803. The next prime is 50499821. The reversal of 50499820 is 2899405.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 50499820.

It is not an unprimeable number, because it can be changed into a prime (50499821) 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, 306 + ... + 10054.

It is an arithmetic number, because the mean of its divisors is an integer number (2593500).

Almost surely, 2^50499820 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50499820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62244000).

50499820 is an abundant number, since it is smaller than the sum of its proper divisors (73988180).

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

50499820 is a wasteful number, since it uses less digits than its factorization.

50499820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802 (or 9800 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 50499820 is about 7106.3225370089. The cubic root of 50499820 is about 369.6266504243.

The spelling of 50499820 in words is "fifty million, four hundred ninety-nine thousand, eight hundred twenty".