5263126566 has 16 divisors (see below), whose sum is σ = 10531190784. Its totient is φ = 1753552584.

The previous prime is 5263126541. The next prime is 5263126633. The reversal of 5263126566 is 6656213625.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191806 + ... + 217521.

It is an arithmetic number, because the mean of its divisors is an integer number (658199424).

Almost surely, 2^5263126566 is an apocalyptic number.

5263126566 is an abundant number, since it is smaller than the sum of its proper divisors (5268064218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5263126566 is a wasteful number, since it uses less digits than its factorization.

5263126566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411475.

The product of its digits is 388800, while the sum is 42.

The square root of 5263126566 is about 72547.4090922619. The cubic root of 5263126566 is about 1739.4606341192.

It can be divided in two parts, 52631 and 26566, that added together give a palindrome (79197).

The spelling of 5263126566 in words is "five billion, two hundred sixty-three million, one hundred twenty-six thousand, five hundred sixty-six".