10215504500 has 24 divisors (see below), whose sum is σ = 22310662920. Its totient is φ = 4086201600.

The previous prime is 10215504499. The next prime is 10215504503. The reversal of 10215504500 is 540551201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 763876 + 10214740624 = 874^2 + 101068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10215504503) 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, 10215005 + ... + 10216004.

It is an arithmetic number, because the mean of its divisors is an integer number (929610955).

Almost surely, 2^10215504500 is an apocalyptic number.

10215504500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10215504500 is an abundant number, since it is smaller than the sum of its proper divisors (12095158420).

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

10215504500 is a wasteful number, since it uses less digits than its factorization.

10215504500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20431028 (or 20431016 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The spelling of 10215504500 in words is "ten billion, two hundred fifteen million, five hundred four thousand, five hundred".