56611265233 has 4 divisors (see below), whose sum is σ = 56612992240. Its totient is φ = 56609538228.

The previous prime is 56611265209. The next prime is 56611265273. The reversal of 56611265233 is 33256211665.

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 56611265233 - 2¹³ = 56611257041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56611265203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 813363 + ... + 880216.

It is an arithmetic number, because the mean of its divisors is an integer number (14153248060).

Almost surely, 2^56611265233 is an apocalyptic number.

It is an amenable number.

56611265233 is a deficient number, since it is larger than the sum of its proper divisors (1727007).

56611265233 is a wasteful number, since it uses less digits than its factorization.

56611265233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1727006.

The product of its digits is 194400, while the sum is 40.

Adding to 56611265233 its reverse (33256211665), we get a palindrome (89867476898).

The spelling of 56611265233 in words is "fifty-six billion, six hundred eleven million, two hundred sixty-five thousand, two hundred thirty-three".