226085985225 has 27 divisors (see below), whose sum is σ = 404957895303. Its totient is φ = 120575388240.

The previous prime is 226085985199. The next prime is 226085985233. The reversal of 226085985225 is 522589580622.

The square root of 226085985225 is 475485.

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

226085985225 is a `hidden beast` number, since 2 + 2 + 60 + 8 + 59 + 8 + 522 + 5 = 666.

It can be written as a sum of positive squares in only one way, i.e., 81390954681 + 144695030544 = 285291^2 + 380388^2 .

It is not a de Polignac number, because 226085985225 - 2⁹ = 226085984713 is a prime.

It is a super-2 number, since 2×226085985225² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7116426 + ... + 7148124.

Almost surely, 2^226085985225 is an apocalyptic number.

226085985225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

226085985225 is the 475485-th square number.

226085985225 is the 237743-rd centered octagonal number.

It is an amenable number.

226085985225 is a deficient number, since it is larger than the sum of its proper divisors (178871910078).

226085985225 is an frugal number, since it uses more digits than its factorization.

226085985225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63414 (or 31707 counting only the distinct ones).

The product of its (nonzero) digits is 6912000, while the sum is 54.

The spelling of 226085985225 in words is "two hundred twenty-six billion, eighty-five million, nine hundred eighty-five thousand, two hundred twenty-five".