225684461 has 4 divisors (see below), whose sum is σ = 227461632. Its totient is φ = 223907292.

The previous prime is 225684397. The next prime is 225684479. The reversal of 225684461 is 164486522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 225684461 - 2⁶ = 225684397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225684161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888395 + ... + 888648.

It is an arithmetic number, because the mean of its divisors is an integer number (56865408).

Almost surely, 2^225684461 is an apocalyptic number.

It is an amenable number.

225684461 is a deficient number, since it is larger than the sum of its proper divisors (1777171).

225684461 is a wasteful number, since it uses less digits than its factorization.

225684461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777170.

The product of its digits is 92160, while the sum is 38.

The square root of 225684461 is about 15022.7980416432. The cubic root of 225684461 is about 608.8363204165.

The spelling of 225684461 in words is "two hundred twenty-five million, six hundred eighty-four thousand, four hundred sixty-one".