56611011 has 8 divisors (see below), whose sum is σ = 75519504. Its totient is φ = 37721600.

The previous prime is 56611007. The next prime is 56611039. The reversal of 56611011 is 11011665.

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

It is a cyclic number.

It is not a de Polignac number, because 56611011 - 2² = 56611007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56618011) 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, 5035 + ... + 11771.

It is an arithmetic number, because the mean of its divisors is an integer number (9439938).

Almost surely, 2^56611011 is an apocalyptic number.

56611011 is a deficient number, since it is larger than the sum of its proper divisors (18908493).

56611011 is a wasteful number, since it uses less digits than its factorization.

56611011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 56611011 is about 7524.0289074405. The cubic root of 56611011 is about 383.9726610853.

Adding to 56611011 its reverse (11011665), we get a palindrome (67622676).

The spelling of 56611011 in words is "fifty-six million, six hundred eleven thousand, eleven".