188225822500 has 45 divisors (see below), whose sum is σ = 411659671269. Its totient is φ = 75281652000.

The previous prime is 188225822483. The next prime is 188225822527. The reversal of 188225822500 is 5228522881.

The square root of 188225822500 is 433850.

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

It can be written as a sum of positive squares in 7 ways, for example, as 176337845476 + 11887977024 = 419926^2 + 109032^2 .

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, 21688162 + ... + 21696838.

Almost surely, 2^188225822500 is an apocalyptic number.

188225822500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

188225822500 is the 433850-th square number.

It is an amenable number.

188225822500 is an abundant number, since it is smaller than the sum of its proper divisors (223433848769).

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

188225822500 is an frugal number, since it uses more digits than its factorization.

188225822500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17378 (or 8684 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 43.

The spelling of 188225822500 in words is "one hundred eighty-eight billion, two hundred twenty-five million, eight hundred twenty-two thousand, five hundred".