5311261563 has 8 divisors (see below), whose sum is σ = 7083720000. Its totient is φ = 3539822088.

The previous prime is 5311261547. The next prime is 5311261603. The reversal of 5311261563 is 3651621135.

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

It is not a de Polignac number, because 5311261563 - 2⁴ = 5311261547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5311261663) 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, 242493 + ... + 263486.

It is an arithmetic number, because the mean of its divisors is an integer number (885465000).

Almost surely, 2^5311261563 is an apocalyptic number.

5311261563 is a deficient number, since it is larger than the sum of its proper divisors (1772458437).

5311261563 is a wasteful number, since it uses less digits than its factorization.

5311261563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509481.

The product of its digits is 16200, while the sum is 33.

The square root of 5311261563 is about 72878.4025826582. The cubic root of 5311261563 is about 1744.7474135706.

Adding to 5311261563 its reverse (3651621135), we get a palindrome (8962882698).

The spelling of 5311261563 in words is "five billion, three hundred eleven million, two hundred sixty-one thousand, five hundred sixty-three".