20010050500 has 96 divisors (see below), whose sum is σ = 49213172736. Its totient is φ = 7041600000.

The previous prime is 20010050479. The next prime is 20010050503. The reversal of 20010050500 is 505001002.

20010050500 = 7117² + 7118² + ... + 7491².

It is not an unprimeable number, because it can be changed into a prime (20010050503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111820 + ... + 229180.

It is an arithmetic number, because the mean of its divisors is an integer number (512637216).

Almost surely, 2^20010050500 is an apocalyptic number.

20010050500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010050500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24606586368).

20010050500 is an abundant number, since it is smaller than the sum of its proper divisors (29203122236).

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

20010050500 is a wasteful number, since it uses less digits than its factorization.

20010050500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117422 (or 117410 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

Adding to 20010050500 its reverse (505001002), we get a palindrome (20515051502).

The spelling of 20010050500 in words is "twenty billion, ten million, fifty thousand, five hundred".