56671001 has 4 divisors (see below), whose sum is σ = 56689152. Its totient is φ = 56652852.

The previous prime is 56670997. The next prime is 56671003. The reversal of 56671001 is 10017665.

56671001 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 56671001 - 2² = 56670997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56671003) 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, 3065 + ... + 11078.

It is an arithmetic number, because the mean of its divisors is an integer number (14172288).

Almost surely, 2^56671001 is an apocalyptic number.

It is an amenable number.

56671001 is a deficient number, since it is larger than the sum of its proper divisors (18151).

56671001 is a wasteful number, since it uses less digits than its factorization.

56671001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18150.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 56671001 is about 7528.0144128449. The cubic root of 56671001 is about 384.1082435916.

Adding to 56671001 its reverse (10017665), we get a palindrome (66688666).

The spelling of 56671001 in words is "fifty-six million, six hundred seventy-one thousand, one".