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5560021 = 6438647
BaseRepresentation
bin10101001101011011010101
3101110110220201
4111031123111
52410410041
6315100501
765154655
oct25153325
911413821
105560021
113158365
121a41731
1311c896c
14a4a365
1574c631
hex54d6d5

5560021 has 4 divisors (see below), whose sum is σ = 5569312. Its totient is φ = 5550732.

The previous prime is 5560019. The next prime is 5560031. The reversal of 5560021 is 1200655.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1200655 = 5240131.

It is a cyclic number.

It is not a de Polignac number, because 5560021 - 21 = 5560019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5560001) 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, 3681 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (1392328).

Almost surely, 25560021 is an apocalyptic number.

It is an amenable number.

5560021 is a deficient number, since it is larger than the sum of its proper divisors (9291).

5560021 is an equidigital number, since it uses as much as digits as its factorization.

5560021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9290.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 5560021 is about 2357.9696774980. The cubic root of 5560021 is about 177.1572012504.

Adding to 5560021 its reverse (1200655), we get a palindrome (6760676).

The spelling of 5560021 in words is "five million, five hundred sixty thousand, twenty-one".

Divisors: 1 643 8647 5560021