11425565 has 8 divisors (see below), whose sum is σ = 14183640. Its totient is φ = 8825152.

The previous prime is 11425537. The next prime is 11425597. The reversal of 11425565 is 56552411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2699449 + 8726116 = 1643^2 + 2954^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11425565 - 2⁶ = 11425501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39254 + ... + 39543.

It is an arithmetic number, because the mean of its divisors is an integer number (1772955).

Almost surely, 2^11425565 is an apocalyptic number.

It is an amenable number.

11425565 is a deficient number, since it is larger than the sum of its proper divisors (2758075).

11425565 is an equidigital number, since it uses as much as digits as its factorization.

11425565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78831.

The product of its digits is 6000, while the sum is 29.

The square root of 11425565 is about 3380.1723328848. The cubic root of 11425565 is about 225.2298227843.

Adding to 11425565 its reverse (56552411), we get a palindrome (67977976).

The spelling of 11425565 in words is "eleven million, four hundred twenty-five thousand, five hundred sixty-five".