11606551 has 4 divisors (see below), whose sum is σ = 12661704. Its totient is φ = 10551400.

The previous prime is 11606537. The next prime is 11606561. The reversal of 11606551 is 15560611.

11606551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11606551 - 2⁵ = 11606519 is a prime.

It is a super-2 number, since 2×11606551² = 269424052231202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11606501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527560 + ... + 527581.

It is an arithmetic number, because the mean of its divisors is an integer number (3165426).

Almost surely, 2^11606551 is an apocalyptic number.

11606551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11606551 is a deficient number, since it is larger than the sum of its proper divisors (1055153).

11606551 is a wasteful number, since it uses less digits than its factorization.

11606551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055152.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 11606551 is about 3406.8388573574. The cubic root of 11606551 is about 226.4128447203.

The spelling of 11606551 in words is "eleven million, six hundred six thousand, five hundred fifty-one".