56814529897 has 4 divisors (see below), whose sum is σ = 56815016260. Its totient is φ = 56814043536.

The previous prime is 56814529883. The next prime is 56814529927. The reversal of 56814529897 is 79892541865.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8106481296 + 48708048601 = 90036^2 + 220699^2 .

It is a cyclic number.

It is not a de Polignac number, because 56814529897 - 2³⁵ = 22454791529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56814529997) 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, 49303 + ... + 340675.

It is an arithmetic number, because the mean of its divisors is an integer number (14203754065).

Almost surely, 2^56814529897 is an apocalyptic number.

It is an amenable number.

56814529897 is a deficient number, since it is larger than the sum of its proper divisors (486363).

56814529897 is a wasteful number, since it uses less digits than its factorization.

56814529897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486362.

The product of its digits is 43545600, while the sum is 64.

The spelling of 56814529897 in words is "fifty-six billion, eight hundred fourteen million, five hundred twenty-nine thousand, eight hundred ninety-seven".