523554554561 has 8 divisors (see below), whose sum is σ = 536629885824. Its totient is φ = 510633961200.

The previous prime is 523554554557. The next prime is 523554554573. The reversal of 523554554561 is 165455455325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523554554561 - 2² = 523554554557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523554554161) 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 7 ways as a sum of consecutive naturals, for example, 38677625 + ... + 38691158.

It is an arithmetic number, because the mean of its divisors is an integer number (67078735728).

Almost surely, 2^523554554561 is an apocalyptic number.

It is an amenable number.

523554554561 is a deficient number, since it is larger than the sum of its proper divisors (13075331263).

523554554561 is a wasteful number, since it uses less digits than its factorization.

523554554561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77368951.

The product of its digits is 9000000, while the sum is 50.

The spelling of 523554554561 in words is "five hundred twenty-three billion, five hundred fifty-four million, five hundred fifty-four thousand, five hundred sixty-one".