56461431313 has 4 divisors (see below), whose sum is σ = 64527350080. Its totient is φ = 48395512548.

The previous prime is 56461431311. The next prime is 56461431337. The reversal of 56461431313 is 31313416465.

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 a cyclic number.

It is not a de Polignac number, because 56461431313 - 2¹ = 56461431311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56461431311) 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, 4032959373 + ... + 4032959386.

It is an arithmetic number, because the mean of its divisors is an integer number (16131837520).

Almost surely, 2^56461431313 is an apocalyptic number.

It is an amenable number.

56461431313 is a deficient number, since it is larger than the sum of its proper divisors (8065918767).

56461431313 is an equidigital number, since it uses as much as digits as its factorization.

56461431313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8065918766.

The product of its digits is 77760, while the sum is 37.

Adding to 56461431313 its reverse (31313416465), we get a palindrome (87774847778).

The spelling of 56461431313 in words is "fifty-six billion, four hundred sixty-one million, four hundred thirty-one thousand, three hundred thirteen".