125663925250 has 16 divisors (see below), whose sum is σ = 235242868536. Its totient is φ = 50265570000.

The previous prime is 125663925241. The next prime is 125663925271. The reversal of 125663925250 is 52529366521.

It can be written as a sum of positive squares in 4 ways, for example, as 15514944481 + 110148980769 = 124559^2 + 331887^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 125663925250.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251327601 + ... + 251328100.

Almost surely, 2^125663925250 is an apocalyptic number.

125663925250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125663925250 is a deficient number, since it is larger than the sum of its proper divisors (109578943286).

125663925250 is an equidigital number, since it uses as much as digits as its factorization.

125663925250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502655718 (or 502655708 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 125663925250 in words is "one hundred twenty-five billion, six hundred sixty-three million, nine hundred twenty-five thousand, two hundred fifty".