5565451 has 4 divisors (see below), whose sum is σ = 5573232. Its totient is φ = 5557672.

The previous prime is 5565449. The next prime is 5565467. The reversal of 5565451 is 1545655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1545655 = 5 ⋅309131.

It is a cyclic number.

It is not a de Polignac number, because 5565451 - 2¹ = 5565449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5565401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2695 + ... + 4288.

It is an arithmetic number, because the mean of its divisors is an integer number (1393308).

Almost surely, 2^5565451 is an apocalyptic number.

5565451 is a deficient number, since it is larger than the sum of its proper divisors (7781).

5565451 is an equidigital number, since it uses as much as digits as its factorization.

5565451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780.

The product of its digits is 15000, while the sum is 31.

The square root of 5565451 is about 2359.1208108107. The cubic root of 5565451 is about 177.2148539473.

The spelling of 5565451 in words is "five million, five hundred sixty-five thousand, four hundred fifty-one".