5565605421 has 8 divisors (see below), whose sum is σ = 7510214880. Its totient is φ = 3665699792.

The previous prime is 5565605417. The next prime is 5565605449. The reversal of 5565605421 is 1245065655.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5565605421 - 2² = 5565605417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5565605421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5565605471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11175666 + ... + 11176163.

It is an arithmetic number, because the mean of its divisors is an integer number (938776860).

Almost surely, 2^5565605421 is an apocalyptic number.

It is an amenable number.

5565605421 is a deficient number, since it is larger than the sum of its proper divisors (1944609459).

5565605421 is a wasteful number, since it uses less digits than its factorization.

5565605421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22351915.

The product of its (nonzero) digits is 180000, while the sum is 39.

The square root of 5565605421 is about 74602.9853357089. The cubic root of 5565605421 is about 1772.1649295443.

The spelling of 5565605421 in words is "five billion, five hundred sixty-five million, six hundred five thousand, four hundred twenty-one".