63454561 has 4 divisors (see below), whose sum is σ = 64401712. Its totient is φ = 62507412.

The previous prime is 63454553. The next prime is 63454571. The reversal of 63454561 is 16545436.

63454561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 63454561 - 2³ = 63454553 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63454571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473475 + ... + 473608.

It is an arithmetic number, because the mean of its divisors is an integer number (16100428).

Almost surely, 2^63454561 is an apocalyptic number.

It is an amenable number.

63454561 is a deficient number, since it is larger than the sum of its proper divisors (947151).

63454561 is an equidigital number, since it uses as much as digits as its factorization.

63454561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947150.

The product of its digits is 43200, while the sum is 34.

The square root of 63454561 is about 7965.8371185959. The cubic root of 63454561 is about 398.8604252566.

Adding to 63454561 its reverse (16545436), we get a palindrome (79999997).

The spelling of 63454561 in words is "sixty-three million, four hundred fifty-four thousand, five hundred sixty-one".