13305202450 has 12 divisors (see below), whose sum is σ = 24747676650. Its totient is φ = 5322080960.

The previous prime is 13305202441. The next prime is 13305202487. The reversal of 13305202450 is 5420250331.

It can be written as a sum of positive squares in 3 ways, for example, as 6393441681 + 6911760769 = 79959^2 + 83137^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133051975 + ... + 133052074.

Almost surely, 2^13305202450 is an apocalyptic number.

13305202450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13305202450 is a deficient number, since it is larger than the sum of its proper divisors (11442474200).

13305202450 is a wasteful number, since it uses less digits than its factorization.

13305202450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266104061 (or 266104056 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 13305202450 its reverse (5420250331), we get a palindrome (18725452781).

The spelling of 13305202450 in words is "thirteen billion, three hundred five million, two hundred two thousand, four hundred fifty".