56340023 has 4 divisors (see below), whose sum is σ = 59654160. Its totient is φ = 53025888.

The previous prime is 56340001. The next prime is 56340043. The reversal of 56340023 is 32004365.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32004365 = 5 ⋅6400873.

It is a cyclic number.

It is not a de Polignac number, because 56340023 - 2²⁰ = 55291447 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 (56340043) 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, 1657043 + ... + 1657076.

It is an arithmetic number, because the mean of its divisors is an integer number (14913540).

Almost surely, 2^56340023 is an apocalyptic number.

56340023 is a deficient number, since it is larger than the sum of its proper divisors (3314137).

56340023 is a wasteful number, since it uses less digits than its factorization.

56340023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3314136.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 56340023 is about 7505.9991340261. Note that the first 3 decimals coincide. The cubic root of 56340023 is about 383.3590086562.

Adding to 56340023 its reverse (32004365), we get a palindrome (88344388).

The spelling of 56340023 in words is "fifty-six million, three hundred forty thousand, twenty-three".