6535263040 has 28 divisors (see below), whose sum is σ = 15562095876. Its totient is φ = 2614105088.

The previous prime is 6535263037. The next prime is 6535263127. The reversal of 6535263040 is 403625356.

It can be written as a sum of positive squares in 2 ways, for example, as 1617326656 + 4917936384 = 40216^2 + 70128^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6535262987 and 6535263005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10211029 + ... + 10211668.

Almost surely, 2^6535263040 is an apocalyptic number.

It is an amenable number.

6535263040 is an abundant number, since it is smaller than the sum of its proper divisors (9026832836).

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

6535263040 is a wasteful number, since it uses less digits than its factorization.

6535263040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20422714 (or 20422704 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The square root of 6535263040 is about 80840.9737694939. The cubic root of 6535263040 is about 1869.6243576159.

Adding to 6535263040 its reverse (403625356), we get a palindrome (6938888396).

The spelling of 6535263040 in words is "six billion, five hundred thirty-five million, two hundred sixty-three thousand, forty".