56513415323 has 4 divisors (see below), whose sum is σ = 57471269880. Its totient is φ = 55555560768.

The previous prime is 56513415319. The next prime is 56513415341. The reversal of 56513415323 is 32351431565.

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

It is a cyclic number.

It is not a de Polignac number, because 56513415323 - 2² = 56513415319 is a prime.

It is a super-2 number, since 2×56513415323² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56513415523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478927190 + ... + 478927307.

It is an arithmetic number, because the mean of its divisors is an integer number (14367817470).

Almost surely, 2^56513415323 is an apocalyptic number.

56513415323 is a deficient number, since it is larger than the sum of its proper divisors (957854557).

56513415323 is an equidigital number, since it uses as much as digits as its factorization.

56513415323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957854556.

The product of its digits is 162000, while the sum is 38.

Adding to 56513415323 its reverse (32351431565), we get a palindrome (88864846888).

The spelling of 56513415323 in words is "fifty-six billion, five hundred thirteen million, four hundred fifteen thousand, three hundred twenty-three".