4520561626563 has 4 divisors (see below), whose sum is σ = 6027415502088. Its totient is φ = 3013707751040.

The previous prime is 4520561626543. The next prime is 4520561626577. The reversal of 4520561626563 is 3656261650254.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4520561626563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4520561626523) 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, 753426937758 + ... + 753426937763.

It is an arithmetic number, because the mean of its divisors is an integer number (1506853875522).

Almost surely, 2^{4520561626563} is an apocalyptic number.

4520561626563 is a deficient number, since it is larger than the sum of its proper divisors (1506853875525).

4520561626563 is a wasteful number, since it uses less digits than its factorization.

4520561626563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506853875524.

The product of its (nonzero) digits is 7776000, while the sum is 51.

The spelling of 4520561626563 in words is "four trillion, five hundred twenty billion, five hundred sixty-one million, six hundred twenty-six thousand, five hundred sixty-three".