225369569 has 4 divisors (see below), whose sum is σ = 225399600. Its totient is φ = 225339540.

The previous prime is 225369539. The next prime is 225369589. The reversal of 225369569 is 965963522.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 225369569 - 2¹² = 225365473 is a prime.

It is a super-2 number, since 2×225369569² = 101582885262491522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (225369539) 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, 7082 + ... + 22380.

It is an arithmetic number, because the mean of its divisors is an integer number (56349900).

Almost surely, 2^225369569 is an apocalyptic number.

It is an amenable number.

225369569 is a deficient number, since it is larger than the sum of its proper divisors (30031).

225369569 is a wasteful number, since it uses less digits than its factorization.

225369569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30030.

The product of its digits is 874800, while the sum is 47.

The square root of 225369569 is about 15012.3139122522. The cubic root of 225369569 is about 608.5530238155.

The spelling of 225369569 in words is "two hundred twenty-five million, three hundred sixty-nine thousand, five hundred sixty-nine".