13125132513250 has 32 divisors (see below), whose sum is σ = 25169522427504. Its totient is φ = 5122002928000.

The previous prime is 13125132513247. The next prime is 13125132513263. The reversal of 13125132513250 is 5231523152131.

It can be written as a sum of positive squares in 8 ways, for example, as 691490370481 + 12433642142769 = 831559^2 + 3526137^2 .

It is a super-2 number, since 2×13125132513250² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 640240117 + ... + 640260616.

Almost surely, 2^{13125132513250} is an apocalyptic number.

13125132513250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13125132513250 is a deficient number, since it is larger than the sum of its proper divisors (12044389914254).

13125132513250 is a wasteful number, since it uses less digits than its factorization.

13125132513250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280500791 (or 1280500781 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

Adding to 13125132513250 its reverse (5231523152131), we get a palindrome (18356655665381).

The spelling of 13125132513250 in words is "thirteen trillion, one hundred twenty-five billion, one hundred thirty-two million, five hundred thirteen thousand, two hundred fifty".