5231871505 has 32 divisors (see below), whose sum is σ = 7343529984. Its totient is φ = 3503702976.

The previous prime is 5231871493. The next prime is 5231871509. The reversal of 5231871505 is 5051781325.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5231871505 - 2⁷ = 5231871377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5231871509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 824274 + ... + 830596.

It is an arithmetic number, because the mean of its divisors is an integer number (229485312).

Almost surely, 2^5231871505 is an apocalyptic number.

It is an amenable number.

5231871505 is a deficient number, since it is larger than the sum of its proper divisors (2111658479).

5231871505 is a wasteful number, since it uses less digits than its factorization.

5231871505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6885.

The product of its (nonzero) digits is 42000, while the sum is 37.

The square root of 5231871505 is about 72331.6770509298. The cubic root of 5231871505 is about 1736.0105350619.

The spelling of 5231871505 in words is "five billion, two hundred thirty-one million, eight hundred seventy-one thousand, five hundred five".