6505535740 has 48 divisors (see below), whose sum is σ = 15551585280. Its totient is φ = 2262793280.

The previous prime is 6505535731. The next prime is 6505535749. The reversal of 6505535740 is 475355056.

It is an interprime number because it is at equal distance from previous prime (6505535731) and next prime (6505535749).

It is a super-3 number, since 3×6505535740³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6505535693 and 6505535702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6505535749) 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, 637780 + ... + 647899.

It is an arithmetic number, because the mean of its divisors is an integer number (323991360).

Almost surely, 2^6505535740 is an apocalyptic number.

It is an amenable number.

6505535740 is an abundant number, since it is smaller than the sum of its proper divisors (9046049540).

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

6505535740 is a wasteful number, since it uses less digits than its factorization.

6505535740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285722 (or 1285720 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 40.

The square root of 6505535740 is about 80656.9013786173. The cubic root of 6505535740 is about 1866.7852283679.

It can be divided in two parts, 6505 and 535740, that added together give a palindrome (542245).

The spelling of 6505535740 in words is "six billion, five hundred five million, five hundred thirty-five thousand, seven hundred forty".