5545669 has 4 divisors (see below), whose sum is σ = 5550444. Its totient is φ = 5540896.

The previous prime is 5545649. The next prime is 5545681. The reversal of 5545669 is 9665455.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 429025 + 5116644 = 655^2 + 2262^2 .

It is a cyclic number.

It is not a de Polignac number, because 5545669 - 2⁵ = 5545637 is a prime.

It is a super-2 number, since 2×5545669² = 61508889315122, which contains 22 as substring.

It is an Ulam 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 (5545609) 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, 609 + ... + 3385.

It is an arithmetic number, because the mean of its divisors is an integer number (1387611).

Almost surely, 2^5545669 is an apocalyptic number.

It is an amenable number.

5545669 is a deficient number, since it is larger than the sum of its proper divisors (4775).

5545669 is a wasteful number, since it uses less digits than its factorization.

5545669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774.

The product of its digits is 162000, while the sum is 40.

The square root of 5545669 is about 2354.9244149229. The cubic root of 5545669 is about 177.0046388179.

The spelling of 5545669 in words is "five million, five hundred forty-five thousand, six hundred sixty-nine".