5266263561 has 8 divisors (see below), whose sum is σ = 7561814400. Its totient is φ = 3240777552.

The previous prime is 5266263559. The next prime is 5266263577. The reversal of 5266263561 is 1653626625.

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

It is not a de Polignac number, because 5266263561 - 2¹ = 5266263559 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (5266263511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67516161 + ... + 67516238.

It is an arithmetic number, because the mean of its divisors is an integer number (945226800).

Almost surely, 2^5266263561 is an apocalyptic number.

It is an amenable number.

5266263561 is a deficient number, since it is larger than the sum of its proper divisors (2295550839).

5266263561 is a wasteful number, since it uses less digits than its factorization.

5266263561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135032415.

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

The square root of 5266263561 is about 72569.0261819738. The cubic root of 5266263561 is about 1739.8061572275.

The spelling of 5266263561 in words is "five billion, two hundred sixty-six million, two hundred sixty-three thousand, five hundred sixty-one".