11650521 has 8 divisors (see below), whose sum is σ = 15554304. Its totient is φ = 7756880.

The previous prime is 11650511. The next prime is 11650531. The reversal of 11650521 is 12505611.

It is an interprime number because it is at equal distance from previous prime (11650511) and next prime (11650531).

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 11650521 - 2⁷ = 11650393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11650511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760 + ... + 4886.

It is an arithmetic number, because the mean of its divisors is an integer number (1944288).

Almost surely, 2^11650521 is an apocalyptic number.

It is an amenable number.

11650521 is a deficient number, since it is larger than the sum of its proper divisors (3903783).

11650521 is an equidigital number, since it uses as much as digits as its factorization.

11650521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 11650521 is about 3413.2859534472. The cubic root of 11650521 is about 226.6983968940.

The spelling of 11650521 in words is "eleven million, six hundred fifty thousand, five hundred twenty-one".