225771066 has 24 divisors (see below), whose sum is σ = 490947444. Its totient is φ = 74983680.

The previous prime is 225771037. The next prime is 225771079. The reversal of 225771066 is 660177522.

225771066 is a `hidden beast` number, since 22 + 577 + 1 + 0 + 66 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 225630441 + 140625 = 15021^2 + 375^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225771066.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17655 + ... + 27626.

Almost surely, 2^225771066 is an apocalyptic number.

225771066 is an abundant number, since it is smaller than the sum of its proper divisors (265176378).

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

225771066 is a wasteful number, since it uses less digits than its factorization.

225771066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45566 (or 45563 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 225771066 is about 15025.6802175476. The cubic root of 225771066 is about 608.9141894998.

The spelling of 225771066 in words is "two hundred twenty-five million, seven hundred seventy-one thousand, sixty-six".