13125006250 has 24 divisors (see below), whose sum is σ = 24607823436. Its totient is φ = 5250000000.

The previous prime is 13125006241. The next prime is 13125006277. The reversal of 13125006250 is 5260052131.

It can be written as a sum of positive squares in 6 ways, for example, as 7656289 + 13117349961 = 2767^2 + 114531^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1043751 + ... + 1056250.

Almost surely, 2^13125006250 is an apocalyptic number.

13125006250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13125006250 is a deficient number, since it is larger than the sum of its proper divisors (11482817186).

13125006250 is an frugal number, since it uses more digits than its factorization.

13125006250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100028 (or 2100008 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 13125006250 its reverse (5260052131), we get a palindrome (18385058381).

The spelling of 13125006250 in words is "thirteen billion, one hundred twenty-five million, six thousand, two hundred fifty".