225575566 has 8 divisors (see below), whose sum is σ = 339029640. Its totient is φ = 112565688.

The previous prime is 225575557. The next prime is 225575587. The reversal of 225575566 is 665575522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109776 + ... + 111811.

It is an arithmetic number, because the mean of its divisors is an integer number (42378705).

Almost surely, 2^225575566 is an apocalyptic number.

225575566 is a deficient number, since it is larger than the sum of its proper divisors (113454074).

225575566 is a wasteful number, since it uses less digits than its factorization.

225575566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222098.

The product of its digits is 630000, while the sum is 43.

The square root of 225575566 is about 15019.1732795118. The cubic root of 225575566 is about 608.7383814667.

The spelling of 225575566 in words is "two hundred twenty-five million, five hundred seventy-five thousand, five hundred sixty-six".