11285505 has 48 divisors (see below), whose sum is σ = 24395904. Its totient is φ = 4688640.

The previous prime is 11285503. The next prime is 11285507. The reversal of 11285505 is 50558211.

It is an interprime number because it is at equal distance from previous prime (11285503) and next prime (11285507).

It is not a de Polignac number, because 11285505 - 2¹ = 11285503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11285503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1837 + ... + 5093.

It is an arithmetic number, because the mean of its divisors is an integer number (508248).

Almost surely, 2^11285505 is an apocalyptic number.

11285505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11285505 is an abundant number, since it is smaller than the sum of its proper divisors (13110399).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11285505 is a wasteful number, since it uses less digits than its factorization.

11285505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286 (or 3283 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 11285505 is about 3359.3905697314. The cubic root of 11285505 is about 224.3057116720.

The spelling of 11285505 in words is "eleven million, two hundred eighty-five thousand, five hundred five".