11648505 has 32 divisors (see below), whose sum is σ = 20487168. Its totient is φ = 5604800.

The previous prime is 11648491. The next prime is 11648509. The reversal of 11648505 is 50584611.

It is not a de Polignac number, because 11648505 - 2⁸ = 11648249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11648509) 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, 37300 + ... + 37610.

It is an arithmetic number, because the mean of its divisors is an integer number (640224).

Almost surely, 2^11648505 is an apocalyptic number.

11648505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11648505 is a deficient number, since it is larger than the sum of its proper divisors (8838663).

11648505 is a wasteful number, since it uses less digits than its factorization.

11648505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 11648505 is about 3412.9906240715. The cubic root of 11648505 is about 226.6853202161.

It can be divided in two parts, 1164 and 8505, that added together give a palindrome (9669).

The spelling of 11648505 in words is "eleven million, six hundred forty-eight thousand, five hundred five".