56541311 has 4 divisors (see below), whose sum is σ = 56628552. Its totient is φ = 56454072.

The previous prime is 56541307. The next prime is 56541319. The reversal of 56541311 is 11314565.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56541311 - 2² = 56541307 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 (56541319) 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, 42641 + ... + 43946.

It is an arithmetic number, because the mean of its divisors is an integer number (14157138).

Almost surely, 2^56541311 is an apocalyptic number.

56541311 is a deficient number, since it is larger than the sum of its proper divisors (87241).

56541311 is an equidigital number, since it uses as much as digits as its factorization.

56541311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87240.

The product of its digits is 1800, while the sum is 26.

The square root of 56541311 is about 7519.3956539073. The cubic root of 56541311 is about 383.8150128051.

Adding to 56541311 its reverse (11314565), we get a palindrome (67855876).

The spelling of 56541311 in words is "fifty-six million, five hundred forty-one thousand, three hundred eleven".