5126656563 has 32 divisors (see below), whose sum is σ = 8684510720. Its totient is φ = 2928013920.

The previous prime is 5126656547. The next prime is 5126656567. The reversal of 5126656563 is 3656566215.

5126656563 is a `hidden beast` number, since 5 + 1 + 26 + 6 + 565 + 63 = 666.

It is not a de Polignac number, because 5126656563 - 2⁴ = 5126656547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5126656567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 436656 + ... + 448242.

It is an arithmetic number, because the mean of its divisors is an integer number (271390960).

Almost surely, 2^5126656563 is an apocalyptic number.

5126656563 is a deficient number, since it is larger than the sum of its proper divisors (3557854157).

5126656563 is a wasteful number, since it uses less digits than its factorization.

5126656563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944 (or 13938 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The square root of 5126656563 is about 71600.6743194504. The cubic root of 5126656563 is about 1724.2943624272.

The spelling of 5126656563 in words is "five billion, one hundred twenty-six million, six hundred fifty-six thousand, five hundred sixty-three".