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2242501561 is a prime number
BaseRepresentation
bin1000010110101001…
…1101101110111001
312210021122212211101
42011222131232321
514043040022221
61010304331401
7106366643266
oct20552355671
95707585741
102242501561
11a50919683
12527013b61
13299792a01
14173b8226d
15d1d14d91
hex85a9dbb9

2242501561 has 2 divisors, whose sum is σ = 2242501562. Its totient is φ = 2242501560.

The previous prime is 2242501549. The next prime is 2242501571. The reversal of 2242501561 is 1651052422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1538129961 + 704371600 = 39219^2 + 26540^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242501561 - 219 = 2241977273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2242501511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121250780 + 1121250781.

It is an arithmetic number, because the mean of its divisors is an integer number (1121250781).

Almost surely, 22242501561 is an apocalyptic number.

It is an amenable number.

2242501561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242501561 is an equidigital number, since it uses as much as digits as its factorization.

2242501561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2242501561 is about 47355.0584520809. The cubic root of 2242501561 is about 1308.9134126297.

Adding to 2242501561 its reverse (1651052422), we get a palindrome (3893553983).

The spelling of 2242501561 in words is "two billion, two hundred forty-two million, five hundred one thousand, five hundred sixty-one".