11521606 has 4 divisors (see below), whose sum is σ = 17282412. Its totient is φ = 5760802.

The previous prime is 11521603. The next prime is 11521607. The reversal of 11521606 is 60612511.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2880400 + ... + 2880403.

It is an arithmetic number, because the mean of its divisors is an integer number (4320603).

Almost surely, 2^11521606 is an apocalyptic number.

11521606 is a deficient number, since it is larger than the sum of its proper divisors (5760806).

11521606 is an equidigital number, since it uses as much as digits as its factorization.

11521606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5760805.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11521606 is about 3394.3491275943. The cubic root of 11521606 is about 225.8591416095.

The spelling of 11521606 in words is "eleven million, five hundred twenty-one thousand, six hundred six".