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53575 = 522143
BaseRepresentation
bin1101000101000111
32201111021
431011013
53203300
61052011
7312124
oct150507
981437
1053575
1137285
1227007
131b502
141574b
1510d1a
hexd147

53575 has 6 divisors (see below), whose sum is σ = 66464. Its totient is φ = 42840.

The previous prime is 53569. The next prime is 53591. The reversal of 53575 is 57535.

It is a happy number.

53575 is nontrivially palindromic in base 4.

53575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53575 - 215 = 20807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 2143 = 53575 / (5 + 3 + 5 + 7 + 5).

It is a Duffinian number.

53575 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1047 + ... + 1096.

253575 is an apocalyptic number.

53575 is a deficient number, since it is larger than the sum of its proper divisors (12889).

53575 is a wasteful number, since it uses less digits than its factorization.

53575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153 (or 2148 counting only the distinct ones).

The product of its digits is 2625, while the sum is 25.

The square root of 53575 is about 231.4627399821. The cubic root of 53575 is about 37.6982097572.

The spelling of 53575 in words is "fifty-three thousand, five hundred seventy-five".

Divisors: 1 5 25 2143 10715 53575