63612001 has 4 divisors (see below), whose sum is σ = 63878400. Its totient is φ = 63345604.

The previous prime is 63611987. The next prime is 63612023. The reversal of 63612001 is 10021636.

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 63612001 - 2¹⁷ = 63480929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63612001.

It is not an unprimeable number, because it can be changed into a prime (63612041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132841 + ... + 133318.

It is an arithmetic number, because the mean of its divisors is an integer number (15969600).

Almost surely, 2^63612001 is an apocalyptic number.

It is an amenable number.

63612001 is a deficient number, since it is larger than the sum of its proper divisors (266399).

63612001 is a wasteful number, since it uses less digits than its factorization.

63612001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266398.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 63612001 is about 7975.7131969499. The cubic root of 63612001 is about 399.1900297274.

Adding to 63612001 its reverse (10021636), we get a palindrome (73633637).

The spelling of 63612001 in words is "sixty-three million, six hundred twelve thousand, one".