63732261 has 8 divisors (see below), whose sum is σ = 85202080. Its totient is φ = 42375312.

The previous prime is 63732247. The next prime is 63732271. The reversal of 63732261 is 16223736.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63732261 - 2⁶ = 63732197 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 (63732271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26890 + ... + 29163.

It is an arithmetic number, because the mean of its divisors is an integer number (10650260).

Almost surely, 2^63732261 is an apocalyptic number.

It is an amenable number.

63732261 is a deficient number, since it is larger than the sum of its proper divisors (21469819).

63732261 is a wasteful number, since it uses less digits than its factorization.

63732261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56435.

The product of its digits is 9072, while the sum is 30.

The square root of 63732261 is about 7983.2487747783. The cubic root of 63732261 is about 399.4414307808.

Adding to 63732261 its reverse (16223736), we get a palindrome (79955997).

The spelling of 63732261 in words is "sixty-three million, seven hundred thirty-two thousand, two hundred sixty-one".