223298777025 has 45 divisors (see below), whose sum is σ = 413665917753. Its totient is φ = 119081340000.

The previous prime is 223298776991. The next prime is 223298777087. The reversal of 223298777025 is 520777892322.

The square root of 223298777025 is 472545.

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 26780340609 + 196518436416 = 163647^2 + 443304^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 223298777025 - 2¹¹ = 223298774977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 21259275 + ... + 21269775.

Almost surely, 2^223298777025 is an apocalyptic number.

223298777025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

223298777025 is the 472545-th square number.

223298777025 is the 236273-rd centered octagonal number.

It is an amenable number.

223298777025 is a deficient number, since it is larger than the sum of its proper divisors (190367140728).

223298777025 is an frugal number, since it uses more digits than its factorization.

223298777025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21024 (or 10509 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 223298777025 in words is "two hundred twenty-three billion, two hundred ninety-eight million, seven hundred seventy-seven thousand, twenty-five".