11521516 has 6 divisors (see below), whose sum is σ = 20162660. Its totient is φ = 5760756.

The previous prime is 11521513. The next prime is 11521519. The reversal of 11521516 is 61512511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11521513) and next prime (11521519).

It is not an unprimeable number, because it can be changed into a prime (11521513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1440186 + ... + 1440193.

Almost surely, 2^11521516 is an apocalyptic number.

It is an amenable number.

11521516 is a deficient number, since it is larger than the sum of its proper divisors (8641144).

11521516 is a wasteful number, since it uses less digits than its factorization.

11521516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2880383 (or 2880381 counting only the distinct ones).

The product of its digits is 300, while the sum is 22.

The square root of 11521516 is about 3394.3358702403. The cubic root of 11521516 is about 225.8585535151.

The spelling of 11521516 in words is "eleven million, five hundred twenty-one thousand, five hundred sixteen".