489556001 has 4 divisors (see below), whose sum is σ = 534061104. Its totient is φ = 445050900.

The previous prime is 489555973. The next prime is 489556003. The reversal of 489556001 is 100655984.

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 a de Polignac number, because none of the positive numbers 2^k-489556001 is a prime.

It is a super-2 number, since 2×489556001² = 479330156230224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489556003) 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, 22252535 + ... + 22252556.

It is an arithmetic number, because the mean of its divisors is an integer number (133515276).

Almost surely, 2^489556001 is an apocalyptic number.

It is an amenable number.

489556001 is a deficient number, since it is larger than the sum of its proper divisors (44505103).

489556001 is a wasteful number, since it uses less digits than its factorization.

489556001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44505102.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 489556001 is about 22125.9124331631. The cubic root of 489556001 is about 788.1353239082.

The spelling of 489556001 in words is "four hundred eighty-nine million, five hundred fifty-six thousand, one".