225484769 has 4 divisors (see below), whose sum is σ = 225660720. Its totient is φ = 225308820.

The previous prime is 225484741. The next prime is 225484811. The reversal of 225484769 is 967484522.

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-225484769 is a prime.

It is a super-2 number, since 2×225484769² = 101686762101966722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225484169) 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, 86039 + ... + 88620.

It is an arithmetic number, because the mean of its divisors is an integer number (56415180).

Almost surely, 2^225484769 is an apocalyptic number.

It is an amenable number.

225484769 is a deficient number, since it is larger than the sum of its proper divisors (175951).

225484769 is a wasteful number, since it uses less digits than its factorization.

225484769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175950.

The product of its digits is 967680, while the sum is 47.

The square root of 225484769 is about 15016.1502722902. The cubic root of 225484769 is about 608.6566955564.

The spelling of 225484769 in words is "two hundred twenty-five million, four hundred eighty-four thousand, seven hundred sixty-nine".