2805500500 has 96 divisors (see below), whose sum is σ = 6827079168. Its totient is φ = 998384000.

The previous prime is 2805500483. The next prime is 2805500561. The reversal of 2805500500 is 50055082.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253074 + ... + 263926.

It is an arithmetic number, because the mean of its divisors is an integer number (71115408).

Almost surely, 2^2805500500 is an apocalyptic number.

2805500500 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 2805500500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3413539584).

2805500500 is an abundant number, since it is smaller than the sum of its proper divisors (4021578668).

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

2805500500 is a wasteful number, since it uses less digits than its factorization.

2805500500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10930 (or 10918 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2805500500 is about 52966.9755602489. The cubic root of 2805500500 is about 1410.3820871526.

Adding to 2805500500 its reverse (50055082), we get a palindrome (2855555582).

It can be divided in two parts, 2805 and 500500, that added together give a palindrome (503305).

The spelling of 2805500500 in words is "two billion, eight hundred five million, five hundred thousand, five hundred".