563440120662523 has 4 divisors (see below), whose sum is σ = 606781668405808. Its totient is φ = 520098572919240.

The previous prime is 563440120662491. The next prime is 563440120662553. The reversal of 563440120662523 is 325266021044365.

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 563440120662523 - 2⁵ = 563440120662491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563440120662553) 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, 21670773871623 + ... + 21670773871648.

It is an arithmetic number, because the mean of its divisors is an integer number (151695417101452).

Almost surely, 2^{563440120662523} is an apocalyptic number.

563440120662523 is a deficient number, since it is larger than the sum of its proper divisors (43341547743285).

563440120662523 is a wasteful number, since it uses less digits than its factorization.

563440120662523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43341547743284.

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 563440120662523 in words is "five hundred sixty-three trillion, four hundred forty billion, one hundred twenty million, six hundred sixty-two thousand, five hundred twenty-three".