63572641 has 4 divisors (see below), whose sum is σ = 69351984. Its totient is φ = 57793300.

The previous prime is 63572629. The next prime is 63572647. The reversal of 63572641 is 14627536.

It is a happy number.

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 63572641 - 2⁵ = 63572609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63572597 and 63572606.

It is not an unprimeable number, because it can be changed into a prime (63572647) 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, 2889655 + ... + 2889676.

It is an arithmetic number, because the mean of its divisors is an integer number (17337996).

Almost surely, 2^63572641 is an apocalyptic number.

It is an amenable number.

63572641 is a deficient number, since it is larger than the sum of its proper divisors (5779343).

63572641 is a wasteful number, since it uses less digits than its factorization.

63572641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779342.

The product of its digits is 30240, while the sum is 34.

The square root of 63572641 is about 7973.2453242077. The cubic root of 63572641 is about 399.1076796411.

It can be divided in two parts, 6357 and 2641, that added together give a palindrome (8998).

The spelling of 63572641 in words is "sixty-three million, five hundred seventy-two thousand, six hundred forty-one".