125025001250 has 90 divisors (see below), whose sum is σ = 239348042703. Its totient is φ = 48964896000.

The previous prime is 125025001217. The next prime is 125025001259. The reversal of 125025001250 is 52100520521.

It can be written as a sum of positive squares in 23 ways, for example, as 78351287569 + 46673713681 = 279913^2 + 216041^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=250025.

It is not an unprimeable number, because it can be changed into a prime (125025001259) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 912591182 + ... + 912591318.

Almost surely, 2^125025001250 is an apocalyptic number.

125025001250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125025001250 is a deficient number, since it is larger than the sum of its proper divisors (114323041453).

125025001250 is an frugal number, since it uses more digits than its factorization.

125025001250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 125025001250 its reverse (52100520521), we get a palindrome (177125521771).

The spelling of 125025001250 in words is "one hundred twenty-five billion, twenty-five million, one thousand, two hundred fifty".