5261188631 has 4 divisors (see below), whose sum is σ = 5320303200. Its totient is φ = 5202074064.

The previous prime is 5261188627. The next prime is 5261188633. The reversal of 5261188631 is 1368811625.

5261188631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5261188631 - 2² = 5261188627 is a prime.

It is a super-2 number, since 2×5261188631² = 55360211621927308322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5261188633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29557151 + ... + 29557328.

It is an arithmetic number, because the mean of its divisors is an integer number (1330075800).

Almost surely, 2^5261188631 is an apocalyptic number.

5261188631 is a deficient number, since it is larger than the sum of its proper divisors (59114569).

5261188631 is an equidigital number, since it uses as much as digits as its factorization.

5261188631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59114568.

The product of its digits is 69120, while the sum is 41.

The square root of 5261188631 is about 72534.0515275412. The cubic root of 5261188631 is about 1739.2471124018.

The spelling of 5261188631 in words is "five billion, two hundred sixty-one million, one hundred eighty-eight thousand, six hundred thirty-one".