56440011 has 8 divisors (see below), whose sum is σ = 75297600. Its totient is φ = 37604552.

The previous prime is 56440009. The next prime is 56440019. The reversal of 56440011 is 11004465.

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 56440011 - 2¹ = 56440009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56440011.

It is not an unprimeable number, because it can be changed into a prime (56440019) 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, 1816 + ... + 10778.

It is an arithmetic number, because the mean of its divisors is an integer number (9412200).

Almost surely, 2^56440011 is an apocalyptic number.

56440011 is a deficient number, since it is larger than the sum of its proper divisors (18857589).

56440011 is a wasteful number, since it uses less digits than its factorization.

56440011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11065.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 56440011 is about 7512.6567204951. The cubic root of 56440011 is about 383.5856601260.

Adding to 56440011 its reverse (11004465), we get a palindrome (67444476).

The spelling of 56440011 in words is "fifty-six million, four hundred forty thousand, eleven".