11152505 has 32 divisors (see below), whose sum is σ = 16687104. Its totient is φ = 6967296.

The previous prime is 11152499. The next prime is 11152507. The reversal of 11152505 is 50525111.

11152505 = T₂₀ + T₂₁ + ... + T₄₀₅.

It is a happy number.

11152505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11152505 - 2⁶ = 11152441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11152507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57689 + ... + 57881.

It is an arithmetic number, because the mean of its divisors is an integer number (521472).

Almost surely, 2^11152505 is an apocalyptic number.

It is an amenable number.

11152505 is a deficient number, since it is larger than the sum of its proper divisors (5534599).

11152505 is a wasteful number, since it uses less digits than its factorization.

11152505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 11152505 is about 3339.5366445062. The cubic root of 11152505 is about 223.4210776233.

Adding to 11152505 its reverse (50525111), we get a palindrome (61677616).

The spelling of 11152505 in words is "eleven million, one hundred fifty-two thousand, five hundred five".