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552221023 is a prime number
BaseRepresentation
bin100000111010100…
…011100101011111
31102111002201211111
4200322203211133
52112332033043
6130444002451
716453541554
oct4072434537
91374081744
10552221023
11263794912
12134b30427
138a53a403
14534aaa2b
153373109d
hex20ea395f

552221023 has 2 divisors, whose sum is σ = 552221024. Its totient is φ = 552221022.

The previous prime is 552221003. The next prime is 552221027. The reversal of 552221023 is 320122255.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 552221023 - 213 = 552212831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 552220985 and 552221003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (552221027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276110511 + 276110512.

It is an arithmetic number, because the mean of its divisors is an integer number (276110512).

Almost surely, 2552221023 is an apocalyptic number.

552221023 is a deficient number, since it is larger than the sum of its proper divisors (1).

552221023 is an equidigital number, since it uses as much as digits as its factorization.

552221023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 552221023 is about 23499.3834599974. The cubic root of 552221023 is about 820.4226568872.

Adding to 552221023 its reverse (320122255), we get a palindrome (872343278).

It can be divided in two parts, 55 and 2221023, that multiplied together give a triangular number (122156265 = T15630).

The spelling of 552221023 in words is "five hundred fifty-two million, two hundred twenty-one thousand, twenty-three".