13535555240 has 16 divisors (see below), whose sum is σ = 30454999380. Its totient is φ = 5414222080.

The previous prime is 13535555237. The next prime is 13535555263. The reversal of 13535555240 is 4255553531.

It can be written as a sum of positive squares in 2 ways, for example, as 12353433316 + 1182121924 = 111146^2 + 34382^2 .

It is a super-2 number, since 2×13535555240² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13535555194 and 13535555203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169194401 + ... + 169194480.

Almost surely, 2^13535555240 is an apocalyptic number.

13535555240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13535555240 is an abundant number, since it is smaller than the sum of its proper divisors (16919444140).

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

13535555240 is a wasteful number, since it uses less digits than its factorization.

13535555240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338388892 (or 338388888 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 13535555240 in words is "thirteen billion, five hundred thirty-five million, five hundred fifty-five thousand, two hundred forty".