125001251250 has 40 divisors (see below), whose sum is σ = 312403136496. Its totient is φ = 33333666000.

The previous prime is 125001251233. The next prime is 125001251269. The reversal of 125001251250 is 52152100521.

It is a self number, because there is not a number n which added to its sum of digits gives 125001251250.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16663084 + ... + 16670583.

Almost surely, 2^125001251250 is an apocalyptic number.

125001251250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125001251250 is an abundant number, since it is smaller than the sum of its proper divisors (187401885246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125001251250 is an equidigital number, since it uses as much as digits as its factorization.

125001251250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333692 (or 33333677 counting only the distinct ones).

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

Adding to 125001251250 its reverse (52152100521), we get a palindrome (177153351771).

The spelling of 125001251250 in words is "one hundred twenty-five billion, one million, two hundred fifty-one thousand, two hundred fifty".