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42223553 is a prime number
BaseRepresentation
bin1010000100010…
…0011111000001
32221110011211022
42201010133001
541302123203
64104555225
71021615511
oct241043701
987404738
1042223553
112191a1a9
1212182b15
138994968
145871841
153a90a38
hex28447c1

42223553 has 2 divisors, whose sum is σ = 42223554. Its totient is φ = 42223552.

The previous prime is 42223543. The next prime is 42223583. The reversal of 42223553 is 35532224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42211009 + 12544 = 6497^2 + 112^2 .

It is a cyclic number.

It is not a de Polignac number, because 42223553 - 214 = 42207169 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42223513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21111776 + 21111777.

It is an arithmetic number, because the mean of its divisors is an integer number (21111777).

Almost surely, 242223553 is an apocalyptic number.

It is an amenable number.

42223553 is a deficient number, since it is larger than the sum of its proper divisors (1).

42223553 is an equidigital number, since it uses as much as digits as its factorization.

42223553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 26.

The square root of 42223553 is about 6497.9652969218. The cubic root of 42223553 is about 348.2183006276.

Adding to 42223553 its reverse (35532224), we get a palindrome (77755777).

The spelling of 42223553 in words is "forty-two million, two hundred twenty-three thousand, five hundred fifty-three".