125540343351250 has 40 divisors (see below), whose sum is σ = 235315776019500. Its totient is φ = 50215506432000.

The previous prime is 125540343351239. The next prime is 125540343351257. The reversal of 125540343351250 is 52153343045521.

It can be written as a sum of positive squares in 10 ways, for example, as 89252743232689 + 36287600118561 = 9447367^2 + 6023919^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125540343351197 and 125540343351206.

It is not an unprimeable number, because it can be changed into a prime (125540343351257) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106123026 + ... + 107299474.

Almost surely, 2^{125540343351250} is an apocalyptic number.

125540343351250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125540343351250 is a deficient number, since it is larger than the sum of its proper divisors (109775432668250).

125540343351250 is an equidigital number, since it uses as much as digits as its factorization.

125540343351250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261840 (or 1261825 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 43.

Adding to 125540343351250 its reverse (52153343045521), we get a palindrome (177693686396771).

The spelling of 125540343351250 in words is "one hundred twenty-five trillion, five hundred forty billion, three hundred forty-three million, three hundred fifty-one thousand, two hundred fifty".