56611799 has 4 divisors (see below), whose sum is σ = 58563960. Its totient is φ = 54659640.

The previous prime is 56611783. The next prime is 56611801. The reversal of 56611799 is 99711665.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99711665 = 5 ⋅19942333.

It is a cyclic number.

It is not a de Polignac number, because 56611799 - 2⁴ = 56611783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976037 + ... + 976094.

It is an arithmetic number, because the mean of its divisors is an integer number (14640990).

Almost surely, 2^56611799 is an apocalyptic number.

56611799 is a deficient number, since it is larger than the sum of its proper divisors (1952161).

56611799 is a wasteful number, since it uses less digits than its factorization.

56611799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952160.

The product of its digits is 102060, while the sum is 44.

The square root of 56611799 is about 7524.0812728200. The cubic root of 56611799 is about 383.9744426531.

The spelling of 56611799 in words is "fifty-six million, six hundred eleven thousand, seven hundred ninety-nine".