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5558 = 27397
BaseRepresentation
bin1010110110110
321121212
41112312
5134213
641422
722130
oct12666
97555
105558
1141a3
123272
1326b7
142050
1519a8
hex15b6

5558 has 8 divisors (see below), whose sum is σ = 9552. Its totient is φ = 2376.

The previous prime is 5557. The next prime is 5563. The reversal of 5558 is 8555.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×55583 = 515082603336, which contains 333 as substring.

It is a magnanimous number.

It is a Curzon number.

It is a plaindrome in base 8 and base 10.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 212.

It is an arithmetic number, because the mean of its divisors is an integer number (1194).

25558 is an apocalyptic number.

5558 is a deficient number, since it is larger than the sum of its proper divisors (3994).

5558 is a wasteful number, since it uses less digits than its factorization.

5558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406.

The product of its digits is 1000, while the sum is 23.

The square root of 5558 is about 74.5519952785. The cubic root of 5558 is about 17.7135733820.

The spelling of 5558 in words is "five thousand, five hundred fifty-eight".

Divisors: 1 2 7 14 397 794 2779 5558