13531202050 has 24 divisors (see below), whose sum is σ = 25171240500. Its totient is φ = 5411791680.

The previous prime is 13531202033. The next prime is 13531202053. The reversal of 13531202050 is 5020213531.

It can be written as a sum of positive squares in 6 ways, for example, as 7247627689 + 6283574361 = 85133^2 + 79269^2 .

It is not an unprimeable number, because it can be changed into a prime (13531202053) 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, 594276 + ... + 616624.

Almost surely, 2^13531202050 is an apocalyptic number.

13531202050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13531202050 is a deficient number, since it is larger than the sum of its proper divisors (11640038450).

13531202050 is a wasteful number, since it uses less digits than its factorization.

13531202050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34470 (or 34465 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 13531202050 its reverse (5020213531), we get a palindrome (18551415581).

The spelling of 13531202050 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, fifty".