225689547 has 8 divisors (see below), whose sum is σ = 314002944. Its totient is φ = 143917928.

The previous prime is 225689531. The next prime is 225689549. The reversal of 225689547 is 745986522.

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

It is a cyclic number.

It is not a de Polignac number, because 225689547 - 2⁴ = 225689531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225689496 and 225689505.

It is not an unprimeable number, because it can be changed into a prime (225689549) 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, 1635363 + ... + 1635500.

It is an arithmetic number, because the mean of its divisors is an integer number (39250368).

Almost surely, 2^225689547 is an apocalyptic number.

225689547 is a deficient number, since it is larger than the sum of its proper divisors (88313397).

225689547 is a wasteful number, since it uses less digits than its factorization.

225689547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270889.

The product of its digits is 1209600, while the sum is 48.

The square root of 225689547 is about 15022.9673167454. The cubic root of 225689547 is about 608.8408939381.

The spelling of 225689547 in words is "two hundred twenty-five million, six hundred eighty-nine thousand, five hundred forty-seven".