225246869 has 4 divisors (see below), whose sum is σ = 225289260. Its totient is φ = 225204480.

The previous prime is 225246841. The next prime is 225246871. The reversal of 225246869 is 968642522.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148474225 + 76772644 = 12185^2 + 8762^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225246869 is a prime.

It is a super-2 number, since 2×225246869² = 101472303988606322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225246839) 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, 11852 + ... + 24309.

It is an arithmetic number, because the mean of its divisors is an integer number (56322315).

Almost surely, 2^225246869 is an apocalyptic number.

It is an amenable number.

225246869 is a deficient number, since it is larger than the sum of its proper divisors (42391).

225246869 is an equidigital number, since it uses as much as digits as its factorization.

225246869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42390.

The product of its digits is 414720, while the sum is 44.

The square root of 225246869 is about 15008.2267107077. The cubic root of 225246869 is about 608.4425637514.

The spelling of 225246869 in words is "two hundred twenty-five million, two hundred forty-six thousand, eight hundred sixty-nine".