5608633621 has 2 divisors, whose sum is σ = 5608633622. Its totient is φ = 5608633620.

The previous prime is 5608633609. The next prime is 5608633631. The reversal of 5608633621 is 1263368065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4110092100 + 1498541521 = 64110^2 + 38711^2 .

It is a cyclic number.

It is not a de Polignac number, because 5608633621 - 2⁹ = 5608633109 is a prime.

It is a super-2 number, since 2×5608633621² = 62913542189223143282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5608633631) by changing a digit.

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 as a sum of consecutive naturals, namely, 2804316810 + 2804316811.

It is an arithmetic number, because the mean of its divisors is an integer number (2804316811).

Almost surely, 2^5608633621 is an apocalyptic number.

It is an amenable number.

5608633621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5608633621 is an equidigital number, since it uses as much as digits as its factorization.

5608633621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 5608633621 is about 74890.8113255558. The cubic root of 5608633621 is about 1776.7201333057.

The spelling of 5608633621 in words is "five billion, six hundred eight million, six hundred thirty-three thousand, six hundred twenty-one".