56427013 has 4 divisors (see below), whose sum is σ = 57352108. Its totient is φ = 55501920.

The previous prime is 56427001. The next prime is 56427023. The reversal of 56427013 is 31072465.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23444964 + 32982049 = 4842^2 + 5743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56427013 is a prime.

It is a super-2 number, since 2×56427013² = 6368015592204338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56427023) 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, 462456 + ... + 462577.

It is an arithmetic number, because the mean of its divisors is an integer number (14338027).

Almost surely, 2^56427013 is an apocalyptic number.

It is an amenable number.

56427013 is a deficient number, since it is larger than the sum of its proper divisors (925095).

56427013 is an equidigital number, since it uses as much as digits as its factorization.

56427013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925094.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 56427013 is about 7511.7915972157. The cubic root of 56427013 is about 383.5562115775.

Adding to 56427013 its reverse (31072465), we get a palindrome (87499478).

The spelling of 56427013 in words is "fifty-six million, four hundred twenty-seven thousand, thirteen".