5991531240 has 64 divisors (see below), whose sum is σ = 18001388160. Its totient is φ = 1595360000.

The previous prime is 5991531239. The next prime is 5991531241. The reversal of 5991531240 is 421351995.

It is an interprime number because it is at equal distance from previous prime (5991531239) and next prime (5991531241).

It is not an unprimeable number, because it can be changed into a prime (5991531241) 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, 44365 + ... + 118115.

It is an arithmetic number, because the mean of its divisors is an integer number (281271690).

Almost surely, 2^5991531240 is an apocalyptic number.

It is an amenable number.

5991531240 is an abundant number, since it is smaller than the sum of its proper divisors (12009856920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5991531240 is a wasteful number, since it uses less digits than its factorization.

5991531240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74442 (or 74438 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 39.

The square root of 5991531240 is about 77404.9820102040. The cubic root of 5991531240 is about 1816.2652592721.

The spelling of 5991531240 in words is "five billion, nine hundred ninety-one million, five hundred thirty-one thousand, two hundred forty".