22785902500 has 45 divisors (see below), whose sum is σ = 49844721927. Its totient is φ = 9111342000.

The previous prime is 22785902473. The next prime is 22785902521. The reversal of 22785902500 is 520958722.

The square root of 22785902500 is 150950.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 1786414756 + 20999487744 = 42266^2 + 144912^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 7545991 + ... + 7549009.

Almost surely, 2^22785902500 is an apocalyptic number.

22785902500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

22785902500 is the 150950-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22785902500

22785902500 is an abundant number, since it is smaller than the sum of its proper divisors (27058819427).

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

22785902500 is an frugal number, since it uses more digits than its factorization.

22785902500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6062 (or 3026 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 22785902500 in words is "twenty-two billion, seven hundred eighty-five million, nine hundred two thousand, five hundred".