10205500 has 24 divisors (see below), whose sum is σ = 22289904. Its totient is φ = 4082000.

The previous prime is 10205497. The next prime is 10205513. The reversal of 10205500 is 550201.

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, 9706 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (928746).

Almost surely, 2^10205500 is an apocalyptic number.

10205500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10205500 is an abundant number, since it is smaller than the sum of its proper divisors (12084404).

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

10205500 is a wasteful number, since it uses less digits than its factorization.

10205500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20430 (or 20418 counting only the distinct ones).

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

The square root of 10205500 is about 3194.6048268917. The cubic root of 10205500 is about 216.9092614747.

Adding to 10205500 its reverse (550201), we get a palindrome (10755701).

The spelling of 10205500 in words is "ten million, two hundred five thousand, five hundred".