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4550500561 = 10145054461
BaseRepresentation
bin1000011110011101…
…10010000011010001
3102202010120101020211
410033032302003101
533304412004221
62031313004121
7220523421325
oct41716620321
912663511224
104550500561
111a25703472
12a6bb53641
135769a89a9
143124d3985
151b97666e1
hex10f3b20d1

4550500561 has 4 divisors (see below), whose sum is σ = 4595555124. Its totient is φ = 4505446000.

The previous prime is 4550500543. The next prime is 4550500583. The reversal of 4550500561 is 1650050554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3730766400 + 819734161 = 61080^2 + 28631^2 .

It is a cyclic number.

It is not a de Polignac number, because 4550500561 - 29 = 4550500049 is a prime.

It is a super-2 number, since 2×45505005612 = 41414110711322629442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4550500501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22527130 + ... + 22527331.

It is an arithmetic number, because the mean of its divisors is an integer number (1148888781).

Almost surely, 24550500561 is an apocalyptic number.

It is an amenable number.

4550500561 is a deficient number, since it is larger than the sum of its proper divisors (45054563).

4550500561 is a wasteful number, since it uses less digits than its factorization.

4550500561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45054562.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 4550500561 is about 67457.3981191092. The cubic root of 4550500561 is about 1657.1165602329.

The spelling of 4550500561 in words is "four billion, five hundred fifty million, five hundred thousand, five hundred sixty-one".

Divisors: 1 101 45054461 4550500561