63652161 has 4 divisors (see below), whose sum is σ = 84869552. Its totient is φ = 42434772.

The previous prime is 63652157. The next prime is 63652163. The reversal of 63652161 is 16125636.

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 not a de Polignac number, because 63652161 - 2² = 63652157 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63652163) 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, 10608691 + ... + 10608696.

It is an arithmetic number, because the mean of its divisors is an integer number (21217388).

Almost surely, 2^63652161 is an apocalyptic number.

It is an amenable number.

63652161 is a deficient number, since it is larger than the sum of its proper divisors (21217391).

63652161 is a wasteful number, since it uses less digits than its factorization.

63652161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21217390.

The product of its digits is 6480, while the sum is 30.

The square root of 63652161 is about 7978.2304428990. The cubic root of 63652161 is about 399.2740185913.

Adding to 63652161 its reverse (16125636), we get a palindrome (79777797).

The spelling of 63652161 in words is "sixty-three million, six hundred fifty-two thousand, one hundred sixty-one".