225002689 has 4 divisors (see below), whose sum is σ = 225157120. Its totient is φ = 224848260.

The previous prime is 225002671. The next prime is 225002699. The reversal of 225002689 is 986200522.

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 a de Polignac number, because none of the positive numbers 2^k-225002689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225002639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75009 + ... + 77950.

It is an arithmetic number, because the mean of its divisors is an integer number (56289280).

Almost surely, 2^225002689 is an apocalyptic number.

It is an amenable number.

225002689 is a deficient number, since it is larger than the sum of its proper divisors (154431).

225002689 is a wasteful number, since it uses less digits than its factorization.

225002689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154430.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 225002689 is about 15000.0896330655. The cubic root of 225002689 is about 608.2226225167. Note that the first 3 decimals are identical.

The spelling of 225002689 in words is "two hundred twenty-five million, two thousand, six hundred eighty-nine".