5640040520 has 32 divisors (see below), whose sum is σ = 12699288000. Its totient is φ = 2254381248.

The previous prime is 5640040501. The next prime is 5640040537. The reversal of 5640040520 is 250400465.

It is a self number, because there is not a number n which added to its sum of digits gives 5640040520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5567 + ... + 106353.

It is an arithmetic number, because the mean of its divisors is an integer number (396852750).

Almost surely, 2^5640040520 is an apocalyptic number.

It is an amenable number.

5640040520 is an abundant number, since it is smaller than the sum of its proper divisors (7059247480).

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

5640040520 is a wasteful number, since it uses less digits than its factorization.

5640040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102197 (or 102193 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5640040520 is about 75100.2031954641. The cubic root of 5640040520 is about 1780.0303533939.

Adding to 5640040520 its reverse (250400465), we get a palindrome (5890440985).

The spelling of 5640040520 in words is "five billion, six hundred forty million, forty thousand, five hundred twenty".