56006813 has 8 divisors (see below), whose sum is σ = 59702400. Its totient is φ = 52386048.

The previous prime is 56006809. The next prime is 56006827. The reversal of 56006813 is 31860065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56006813 - 2² = 56006809 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 (56006803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17156 + ... + 20157.

It is an arithmetic number, because the mean of its divisors is an integer number (7462800).

Almost surely, 2^56006813 is an apocalyptic number.

It is an amenable number.

56006813 is a deficient number, since it is larger than the sum of its proper divisors (3695587).

56006813 is a wasteful number, since it uses less digits than its factorization.

56006813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37411.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 56006813 is about 7483.7699724136. The cubic root of 56006813 is about 382.6017511636.

Adding to 56006813 its reverse (31860065), we get a palindrome (87866878).

The spelling of 56006813 in words is "fifty-six million, six thousand, eight hundred thirteen".