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5500307561 = 72334163401
BaseRepresentation
bin1010001111101100…
…00000100001101001
3112012022210120111212
411013312000201221
542231034320221
62305442402505
7253205562050
oct50766004151
915168716455
105500307561
112372864531
121096060435
136986c0978
143a26d7397
15222d30b5b
hex147d80869

5500307561 has 8 divisors (see below), whose sum is σ = 6559373184. Its totient is φ = 4509568800.

The previous prime is 5500307537. The next prime is 5500307599. The reversal of 5500307561 is 1657030055.

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 5500307561 - 226 = 5433198697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5500307531) 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, 17081540 + ... + 17081861.

It is an arithmetic number, because the mean of its divisors is an integer number (819921648).

Almost surely, 25500307561 is an apocalyptic number.

It is an amenable number.

5500307561 is a deficient number, since it is larger than the sum of its proper divisors (1059065623).

5500307561 is a wasteful number, since it uses less digits than its factorization.

5500307561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34163431.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 5500307561 is about 74164.0584178077. The cubic root of 5500307561 is about 1765.2070700032.

The spelling of 5500307561 in words is "five billion, five hundred million, three hundred seven thousand, five hundred sixty-one".

Divisors: 1 7 23 161 34163401 239143807 785758223 5500307561