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55253 = 115023
BaseRepresentation
bin1101011111010101
32210210102
431133111
53232003
61103445
7320042
oct153725
983712
1055253
1138570
1227b85
131c1c3
14161c9
1511588
hexd7d5

55253 has 4 divisors (see below), whose sum is σ = 60288. Its totient is φ = 50220.

The previous prime is 55249. The next prime is 55259. The reversal of 55253 is 35255.

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.

It is a cyclic number.

It is not a de Polignac number, because 55253 - 22 = 55249 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2501 + ... + 2522.

It is an arithmetic number, because the mean of its divisors is an integer number (15072).

255253 is an apocalyptic number.

It is an amenable number.

55253 is a deficient number, since it is larger than the sum of its proper divisors (5035).

55253 is a wasteful number, since it uses less digits than its factorization.

55253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5034.

The product of its digits is 750, while the sum is 20.

The square root of 55253 is about 235.0595669187. The cubic root of 55253 is about 38.0877473615.

The spelling of 55253 in words is "fifty-five thousand, two hundred fifty-three".

Divisors: 1 11 5023 55253