56342311 has 4 divisors (see below), whose sum is σ = 56359800. Its totient is φ = 56324824.

The previous prime is 56342303. The next prime is 56342317. The reversal of 56342311 is 11324365.

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 56342311 - 2³ = 56342303 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 (56342317) 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 3 ways as a sum of consecutive naturals, for example, 2356 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (14089950).

Almost surely, 2^56342311 is an apocalyptic number.

56342311 is a deficient number, since it is larger than the sum of its proper divisors (17489).

56342311 is a wasteful number, since it uses less digits than its factorization.

56342311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17488.

The product of its digits is 2160, while the sum is 25.

The square root of 56342311 is about 7506.1515439005. The cubic root of 56342311 is about 383.3641980609.

Adding to 56342311 its reverse (11324365), we get a palindrome (67666676).

The spelling of 56342311 in words is "fifty-six million, three hundred forty-two thousand, three hundred eleven".