56011001 has 8 divisors (see below), whose sum is σ = 57553440. Its totient is φ = 54488448.

The previous prime is 56010991. The next prime is 56011009. The reversal of 56011001 is 10011065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56011001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56011009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830 + ... + 10616.

It is an arithmetic number, because the mean of its divisors is an integer number (7194180).

Almost surely, 2^56011001 is an apocalyptic number.

It is an amenable number.

56011001 is a deficient number, since it is larger than the sum of its proper divisors (1542439).

56011001 is an equidigital number, since it uses as much as digits as its factorization.

56011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9943.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 56011001 is about 7484.0497726832. The cubic root of 56011001 is about 382.6112874808.

Adding to 56011001 its reverse (10011065), we get a palindrome (66022066).

The spelling of 56011001 in words is "fifty-six million, eleven thousand, one".