63261 has 20 divisors (see below), whose sum is σ = 104544.
Its totient is φ = 37800.
The previous prime is 63247. The next prime is 63277. The reversal of 63261 is 16236.
Adding to 63261 its reverse (16236), we get a palindrome (79497).
It can be divided in two parts, 63 and 261, that added together give a square (324 = 182).
It is a happy number.
It is not a de Polignac number, because 63261 - 26 = 63197 is a prime.
It is a partition number, being equal to the number of ways a set of 43 identical objects can be partitioned into subset.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (63211) 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 19 ways as a sum of consecutive naturals, for example, 856 + ... + 926.
263261 is an apocalyptic number.
It is an amenable number.
63261 is a deficient number, since it is larger than the sum of its proper divisors (41283).
63261 is a wasteful number, since it uses less digits than its factorization.
63261 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 94 (or 85 counting only the distinct ones).
The product of its digits is 216, while the sum is 18.
The square root of 63261 is about 251.5173950247.
The cubic root of 63261 is about 39.8454452566.
The spelling of 63261 in words is "sixty-three thousand, two hundred sixty-one".