222543345025 has 9 divisors (see below), whose sum is σ = 275956672681. Its totient is φ = 178032789040.

The previous prime is 222543345019. The next prime is 222543345071. The reversal of 222543345025 is 520543345222.

The square root of 222543345025 is 471745.

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

It can be written as a sum of positive squares in 4 ways, for example, as 66505704769 + 156037640256 = 257887^2 + 395016^2 .

It is not a de Polignac number, because 222543345025 - 2¹³ = 222543336833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2311551 + ... + 2405899.

Almost surely, 2^222543345025 is an apocalyptic number.

222543345025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

222543345025 is the 471745-th square number.

222543345025 is the 235873-rd centered octagonal number.

It is an amenable number.

222543345025 is a deficient number, since it is larger than the sum of its proper divisors (53413327656).

222543345025 is an frugal number, since it uses more digits than its factorization.

222543345025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188708 (or 94354 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 37.

The spelling of 222543345025 in words is "two hundred twenty-two billion, five hundred forty-three million, three hundred forty-five thousand, twenty-five".