56340813 has 4 divisors (see below), whose sum is σ = 75121088. Its totient is φ = 37560540.

The previous prime is 56340803. The next prime is 56340829. The reversal of 56340813 is 31804365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56340813 - 2⁴ = 56340797 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 (56340803) 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, 9390133 + ... + 9390138.

It is an arithmetic number, because the mean of its divisors is an integer number (18780272).

Almost surely, 2^56340813 is an apocalyptic number.

It is an amenable number.

56340813 is a deficient number, since it is larger than the sum of its proper divisors (18780275).

56340813 is a wasteful number, since it uses less digits than its factorization.

56340813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18780274.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 56340813 is about 7506.0517584147. The cubic root of 56340813 is about 383.3608004683.

The spelling of 56340813 in words is "fifty-six million, three hundred forty thousand, eight hundred thirteen".