13530550450 has 24 divisors (see below), whose sum is σ = 25327136772. Its totient is φ = 5377744320.

The previous prime is 13530550403. The next prime is 13530550457. The reversal of 13530550450 is 5405503531.

It can be written as a sum of positive squares in 6 ways, for example, as 932508369 + 12598042081 = 30537^2 + 112241^2 .

It is not an unprimeable number, because it can be changed into a prime (13530550457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 853969 + ... + 869668.

Almost surely, 2^13530550450 is an apocalyptic number.

13530550450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13530550450 is a deficient number, since it is larger than the sum of its proper divisors (11796586322).

13530550450 is a wasteful number, since it uses less digits than its factorization.

13530550450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723806 (or 1723801 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

The spelling of 13530550450 in words is "thirteen billion, five hundred thirty million, five hundred fifty thousand, four hundred fifty".