56551611 has 8 divisors (see below), whose sum is σ = 75619600. Its totient is φ = 37592352.

The previous prime is 56551589. The next prime is 56551613. The reversal of 56551611 is 11615565.

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

It is not a de Polignac number, because 56551611 - 2⁷ = 56551483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56551613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25960 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (9452450).

Almost surely, 2^56551611 is an apocalyptic number.

56551611 is a deficient number, since it is larger than the sum of its proper divisors (19067989).

56551611 is a wasteful number, since it uses less digits than its factorization.

56551611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54365.

The product of its digits is 4500, while the sum is 30.

The square root of 56551611 is about 7520.0805181860. The cubic root of 56551611 is about 383.8383176215.

The spelling of 56551611 in words is "fifty-six million, five hundred fifty-one thousand, six hundred eleven".