56755211 has 4 divisors (see below), whose sum is σ = 57393000. Its totient is φ = 56117424.

The previous prime is 56755201. The next prime is 56755213. The reversal of 56755211 is 11255765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11255765 = 5 ⋅2251153.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56755211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56755213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318761 + ... + 318938.

It is an arithmetic number, because the mean of its divisors is an integer number (14348250).

Almost surely, 2^56755211 is an apocalyptic number.

56755211 is a deficient number, since it is larger than the sum of its proper divisors (637789).

56755211 is an equidigital number, since it uses as much as digits as its factorization.

56755211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637788.

The product of its digits is 10500, while the sum is 32.

The square root of 56755211 is about 7533.6054449380. The cubic root of 56755211 is about 384.2984040293.

The spelling of 56755211 in words is "fifty-six million, seven hundred fifty-five thousand, two hundred eleven".