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53220559 = 77602937
BaseRepresentation
bin1100101100000…
…1010011001111
310201010212212211
43023001103033
5102111024214
65140411251
71214236660
oct313012317
9121125784
1053220559
1128050437
12159a6b27
13b045272
1470d5367
154a140c4
hex32c14cf

53220559 has 4 divisors (see below), whose sum is σ = 60823504. Its totient is φ = 45617616.

The previous prime is 53220553. The next prime is 53220581. The reversal of 53220559 is 95502235.

53220559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95502235 = 519100447.

It is a cyclic number.

It is not a de Polignac number, because 53220559 - 221 = 51123407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53220559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53220553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3801462 + ... + 3801475.

It is an arithmetic number, because the mean of its divisors is an integer number (15205876).

Almost surely, 253220559 is an apocalyptic number.

53220559 is a deficient number, since it is larger than the sum of its proper divisors (7602945).

53220559 is an equidigital number, since it uses as much as digits as its factorization.

53220559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602944.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 53220559 is about 7295.2422166779. The cubic root of 53220559 is about 376.1489125532.

The spelling of 53220559 in words is "fifty-three million, two hundred twenty thousand, five hundred fifty-nine".

Divisors: 1 7 7602937 53220559