1250001250125 has 32 divisors (see below), whose sum is σ = 2080081261440. Its totient is φ = 666641955200.

The previous prime is 1250001250103. The next prime is 1250001250171. The reversal of 1250001250125 is 5210521000521.

It is not a de Polignac number, because 1250001250125 - 2⁶ = 1250001250061 is a prime.

1250001250125 is a modest number, since divided by 1250125 gives 12500 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1250001250095 and 1250001250104.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 13882249 + ... + 13972001.

It is an arithmetic number, because the mean of its divisors is an integer number (65002539420).

Almost surely, 2^{1250001250125} is an apocalyptic number.

1250001250125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1250001250125 is a deficient number, since it is larger than the sum of its proper divisors (830080011315).

1250001250125 is an equidigital number, since it uses as much as digits as its factorization.

1250001250125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126910 (or 126900 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 24.

Adding to 1250001250125 its reverse (5210521000521), we get a palindrome (6460522250646).

The spelling of 1250001250125 in words is "one trillion, two hundred fifty billion, one million, two hundred fifty thousand, one hundred twenty-five".