11675551 has 4 divisors (see below), whose sum is σ = 11760912. Its totient is φ = 11590192.

The previous prime is 11675539. The next prime is 11675567. The reversal of 11675551 is 15557611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15557611 = 47 ⋅331013.

It is a cyclic number.

It is not a de Polignac number, because 11675551 - 2²¹ = 9578399 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11675591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42475 + ... + 42748.

It is an arithmetic number, because the mean of its divisors is an integer number (2940228).

Almost surely, 2^11675551 is an apocalyptic number.

11675551 is a deficient number, since it is larger than the sum of its proper divisors (85361).

11675551 is an equidigital number, since it uses as much as digits as its factorization.

11675551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85360.

The product of its digits is 5250, while the sum is 31.

The square root of 11675551 is about 3416.9505410527. The cubic root of 11675551 is about 226.8606271836.

The spelling of 11675551 in words is "eleven million, six hundred seventy-five thousand, five hundred fifty-one".