5665523 has 4 divisors (see below), whose sum is σ = 5694480. Its totient is φ = 5636568.

The previous prime is 5665519. The next prime is 5665531. The reversal of 5665523 is 3255665.

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 5665523 - 2² = 5665519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5665523.

It is not an unprimeable number, because it can be changed into a prime (5665123) 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, 14183 + ... + 14576.

It is an arithmetic number, because the mean of its divisors is an integer number (1423620).

Almost surely, 2^5665523 is an apocalyptic number.

5665523 is a deficient number, since it is larger than the sum of its proper divisors (28957).

5665523 is a wasteful number, since it uses less digits than its factorization.

5665523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28956.

The product of its digits is 27000, while the sum is 32.

The square root of 5665523 is about 2380.2359126776. The cubic root of 5665523 is about 178.2707133525.

The spelling of 5665523 in words is "five million, six hundred sixty-five thousand, five hundred twenty-three".