5621404560 has 80 divisors (see below), whose sum is σ = 17468256960. Its totient is φ = 1495436800.

The previous prime is 5621404513. The next prime is 5621404583. The reversal of 5621404560 is 654041265.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72610 + ... + 128510.

It is an arithmetic number, because the mean of its divisors is an integer number (218353212).

Almost surely, 2^5621404560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5621404560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8734128480).

5621404560 is an abundant number, since it is smaller than the sum of its proper divisors (11846852400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5621404560 is a wasteful number, since it uses less digits than its factorization.

5621404560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56336 (or 56330 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 5621404560 is about 74976.0265684972. The cubic root of 5621404560 is about 1778.0676501055.

The spelling of 5621404560 in words is "five billion, six hundred twenty-one million, four hundred four thousand, five hundred sixty".