56120811 has 8 divisors (see below), whose sum is σ = 75323904. Its totient is φ = 37165800.

The previous prime is 56120807. The next prime is 56120821. The reversal of 56120811 is 11802165.

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

It is not a de Polignac number, because 56120811 - 2² = 56120807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56120821) 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, 61491 + ... + 62396.

It is an arithmetic number, because the mean of its divisors is an integer number (9415488).

Almost surely, 2^56120811 is an apocalyptic number.

56120811 is a deficient number, since it is larger than the sum of its proper divisors (19203093).

56120811 is a wasteful number, since it uses less digits than its factorization.

56120811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124041.

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 56120811 is about 7491.3824491879. The cubic root of 56120811 is about 382.8611617196.

Adding to 56120811 its reverse (11802165), we get a palindrome (67922976).

The spelling of 56120811 in words is "fifty-six million, one hundred twenty thousand, eight hundred eleven".