5261116531 has 16 divisors (see below), whose sum is σ = 6341234688. Its totient is φ = 4305769600.

The previous prime is 5261116517. The next prime is 5261116559. The reversal of 5261116531 is 1356111625.

It is a happy number.

It is not a de Polignac number, because 5261116531 - 2⁵ = 5261116499 is a prime.

It is a super-2 number, since 2×5261116531² = 55358694305522947922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5261116493 and 5261116502.

It is not an unprimeable number, because it can be changed into a prime (5261116571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607315 + ... + 615916.

It is an arithmetic number, because the mean of its divisors is an integer number (396327168).

Almost surely, 2^5261116531 is an apocalyptic number.

5261116531 is a deficient number, since it is larger than the sum of its proper divisors (1080118157).

5261116531 is a wasteful number, since it uses less digits than its factorization.

5261116531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223282.

The product of its digits is 5400, while the sum is 31.

The square root of 5261116531 is about 72533.5545178919. The cubic root of 5261116531 is about 1739.2391674108.

The spelling of 5261116531 in words is "five billion, two hundred sixty-one million, one hundred sixteen thousand, five hundred thirty-one".