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55203 = 318401
BaseRepresentation
bin1101011110100011
32210201120
431132203
53231303
61103323
7316641
oct153643
983646
1055203
1138525
1227b43
131c185
1416191
1511553
hexd7a3

55203 has 4 divisors (see below), whose sum is σ = 73608. Its totient is φ = 36800.

The previous prime is 55201. The next prime is 55207. The reversal of 55203 is 30255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55203 - 21 = 55201 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (55201) 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, 9198 + ... + 9203.

It is an arithmetic number, because the mean of its divisors is an integer number (18402).

255203 is an apocalyptic number.

55203 is a deficient number, since it is larger than the sum of its proper divisors (18405).

55203 is a wasteful number, since it uses less digits than its factorization.

55203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 55203 is about 234.9531868267. The cubic root of 55203 is about 38.0762550015.

Adding to 55203 its reverse (30255), we get a palindrome (85458).

The spelling of 55203 in words is "fifty-five thousand, two hundred three".

Divisors: 1 3 18401 55203