11505265 has 8 divisors (see below), whose sum is σ = 13883688. Its totient is φ = 9152640.

The previous prime is 11505259. The next prime is 11505281. The reversal of 11505265 is 56250511.

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 10751841 = 868^2 + 3279^2 .

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

It is not a de Polignac number, because 11505265 - 2⁵ = 11505233 is a prime.

It is a super-2 number, since 2×11505265² = 264742245440450, which contains 22 as substring.

It is a Duffinian 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, 5452 + ... + 7261.

It is an arithmetic number, because the mean of its divisors is an integer number (1735461).

Almost surely, 2^11505265 is an apocalyptic number.

It is an amenable number.

11505265 is a deficient number, since it is larger than the sum of its proper divisors (2378423).

11505265 is a wasteful number, since it uses less digits than its factorization.

11505265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12899.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 11505265 is about 3391.9411846316. The cubic root of 11505265 is about 225.7523130282.

Adding to 11505265 its reverse (56250511), we get a palindrome (67755776).

The spelling of 11505265 in words is "eleven million, five hundred five thousand, two hundred sixty-five".