56610862813 has 4 divisors (see below), whose sum is σ = 56694980668. Its totient is φ = 56526744960.

The previous prime is 56610862771. The next prime is 56610862823. The reversal of 56610862813 is 31826801665.

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 32507368804 + 24103494009 = 180298^2 + 155253^2 .

It is a cyclic number.

It is not a de Polignac number, because 56610862813 - 2¹⁷ = 56610731741 is a prime.

It is a super-3 number, since 3×56610862813³ (a number of 33 digits) contains 333 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 (56610862823) 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, 42057918 + ... + 42059263.

It is an arithmetic number, because the mean of its divisors is an integer number (14173745167).

Almost surely, 2^56610862813 is an apocalyptic number.

It is an amenable number.

56610862813 is a deficient number, since it is larger than the sum of its proper divisors (84117855).

56610862813 is an equidigital number, since it uses as much as digits as its factorization.

56610862813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84117854.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 56610862813 in words is "fifty-six billion, six hundred ten million, eight hundred sixty-two thousand, eight hundred thirteen".