11572505 has 8 divisors (see below), whose sum is σ = 15870912. Its totient is φ = 7935408.

The previous prime is 11572487. The next prime is 11572507. The reversal of 11572505 is 50527511.

It is a happy number.

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 11572505 - 2¹⁰ = 11571481 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11572507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165287 + ... + 165356.

It is an arithmetic number, because the mean of its divisors is an integer number (1983864).

Almost surely, 2^11572505 is an apocalyptic number.

It is an amenable number.

11572505 is a deficient number, since it is larger than the sum of its proper divisors (4298407).

11572505 is an equidigital number, since it uses as much as digits as its factorization.

11572505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330655.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 11572505 is about 3401.8384735316. The cubic root of 11572505 is about 226.1912456941.

The spelling of 11572505 in words is "eleven million, five hundred seventy-two thousand, five hundred five".