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53663 = 103521
BaseRepresentation
bin1101000110011111
32201121112
431012133
53204123
61052235
7312311
oct150637
981545
1053663
1137355
122707b
131b56c
14157b1
1510d78
hexd19f

53663 has 4 divisors (see below), whose sum is σ = 54288. Its totient is φ = 53040.

The previous prime is 53657. The next prime is 53681. The reversal of 53663 is 36635.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 53663 - 28 = 53407 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 (53623) 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, 158 + ... + 363.

It is an arithmetic number, because the mean of its divisors is an integer number (13572).

253663 is an apocalyptic number.

53663 is a deficient number, since it is larger than the sum of its proper divisors (625).

53663 is a wasteful number, since it uses less digits than its factorization.

53663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624.

The product of its digits is 1620, while the sum is 23.

The square root of 53663 is about 231.6527573762. The cubic root of 53663 is about 37.7188389546.

The spelling of 53663 in words is "fifty-three thousand, six hundred sixty-three".

Divisors: 1 103 521 53663