5561621423 has 8 divisors (see below), whose sum is σ = 5997127920. Its totient is φ = 5140393920.

The previous prime is 5561621413. The next prime is 5561621431. The reversal of 5561621423 is 3241261655.

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 5561621423 - 2⁸ = 5561621167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5561621413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3568940 + ... + 3570497.

It is an arithmetic number, because the mean of its divisors is an integer number (749640990).

Almost surely, 2^5561621423 is an apocalyptic number.

5561621423 is a deficient number, since it is larger than the sum of its proper divisors (435506497).

5561621423 is a wasteful number, since it uses less digits than its factorization.

5561621423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139497.

The product of its digits is 43200, while the sum is 35.

The square root of 5561621423 is about 74576.2792246972. The cubic root of 5561621423 is about 1771.7419754470.

The spelling of 5561621423 in words is "five billion, five hundred sixty-one million, six hundred twenty-one thousand, four hundred twenty-three".