5667551 has 4 divisors (see below), whose sum is σ = 5684232. Its totient is φ = 5650872.

The previous prime is 5667547. The next prime is 5667593. The reversal of 5667551 is 1557665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1557665 = 5 ⋅311533.

It is a cyclic number.

It is not a de Polignac number, because 5667551 - 2² = 5667547 is a prime.

It is a super-2 number, since 2×5667551² = 64242268675202, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5607551) 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, 7820 + ... + 8513.

It is an arithmetic number, because the mean of its divisors is an integer number (1421058).

Almost surely, 2^5667551 is an apocalyptic number.

5667551 is a deficient number, since it is larger than the sum of its proper divisors (16681).

5667551 is a wasteful number, since it uses less digits than its factorization.

5667551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16680.

The product of its digits is 31500, while the sum is 35.

The square root of 5667551 is about 2380.6618827545. The cubic root of 5667551 is about 178.2919817555.

The spelling of 5667551 in words is "five million, six hundred sixty-seven thousand, five hundred fifty-one".