11225565 has 48 divisors (see below), whose sum is σ = 21665280. Its totient is φ = 5339520.

The previous prime is 11225551. The next prime is 11225567. The reversal of 11225565 is 56552211.

It is not a de Polignac number, because 11225565 - 2⁴ = 11225549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11225567) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17826 + ... + 18444.

It is an arithmetic number, because the mean of its divisors is an integer number (451360).

Almost surely, 2^11225565 is an apocalyptic number.

11225565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11225565 is a deficient number, since it is larger than the sum of its proper divisors (10439715).

11225565 is a wasteful number, since it uses less digits than its factorization.

11225565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 671 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 11225565 is about 3350.4574314562. The cubic root of 11225565 is about 223.9078928819.

Adding to 11225565 its reverse (56552211), we get a palindrome (67777776).

The spelling of 11225565 in words is "eleven million, two hundred twenty-five thousand, five hundred sixty-five".