11000505 has 32 divisors (see below), whose sum is σ = 18643968. Its totient is φ = 5529600.

The previous prime is 11000467. The next prime is 11000537. The reversal of 11000505 is 50500011.

It is not a de Polignac number, because 11000505 - 2⁶ = 11000441 is a prime.

It is a super-2 number, since 2×11000505² = 242022220510050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18777 + ... + 19353.

It is an arithmetic number, because the mean of its divisors is an integer number (582624).

Almost surely, 2^11000505 is an apocalyptic number.

11000505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11000505 is a deficient number, since it is larger than the sum of its proper divisors (7643463).

11000505 is a wasteful number, since it uses less digits than its factorization.

11000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657.

The product of its (nonzero) digits is 25, while the sum is 12.

The square root of 11000505 is about 3316.7009210961. The cubic root of 11000505 is about 222.4014123683.

Adding to 11000505 its reverse (50500011), we get a palindrome (61500516).

The spelling of 11000505 in words is "eleven million, five hundred five", and thus it is an aban number.