225038661 has 8 divisors (see below), whose sum is σ = 300488544. Its totient is φ = 149807280.

The previous prime is 225038659. The next prime is 225038677. The reversal of 225038661 is 166830522.

225038661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 225038661 - 2¹ = 225038659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225038761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52206 + ... + 56351.

It is an arithmetic number, because the mean of its divisors is an integer number (37561068).

Almost surely, 2^225038661 is an apocalyptic number.

It is an amenable number.

225038661 is a deficient number, since it is larger than the sum of its proper divisors (75449883).

225038661 is a wasteful number, since it uses less digits than its factorization.

225038661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109251.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 225038661 is about 15001.2886446465. The cubic root of 225038661 is about 608.2550337121.

The spelling of 225038661 in words is "two hundred twenty-five million, thirty-eight thousand, six hundred sixty-one".