5669509 has 4 divisors (see below), whose sum is σ = 5674816. Its totient is φ = 5664204.

The previous prime is 5669501. The next prime is 5669513. The reversal of 5669509 is 9059665.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5669509 - 2³ = 5669501 is a prime.

It is a Duffinian number.

5669509 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5669501) 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, 429 + ... + 3394.

It is an arithmetic number, because the mean of its divisors is an integer number (1418704).

Almost surely, 2^5669509 is an apocalyptic number.

It is an amenable number.

5669509 is a deficient number, since it is larger than the sum of its proper divisors (5307).

5669509 is a wasteful number, since it uses less digits than its factorization.

5669509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306.

The product of its (nonzero) digits is 72900, while the sum is 40.

The square root of 5669509 is about 2381.0730774170. The cubic root of 5669509 is about 178.3125112285.

The spelling of 5669509 in words is "five million, six hundred sixty-nine thousand, five hundred nine".