125455515002225 has 6 divisors (see below), whose sum is σ = 155564838602790. Its totient is φ = 100364412001760.

The previous prime is 125455515002219. The next prime is 125455515002227. The reversal of 125455515002225 is 522200515554521.

It can be written as a sum of positive squares in 3 ways, for example, as 20406975038464 + 105048539963761 = 4517408^2 + 10249319^2 .

It is not a de Polignac number, because 125455515002225 - 2¹² = 125455514998129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125455515002227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2509110300020 + ... + 2509110300069.

It is an arithmetic number, because the mean of its divisors is an integer number (25927473100465).

Almost surely, 2^{125455515002225} is an apocalyptic number.

It is an amenable number.

125455515002225 is a deficient number, since it is larger than the sum of its proper divisors (30109323600565).

125455515002225 is an equidigital number, since it uses as much as digits as its factorization.

125455515002225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018220600099 (or 5018220600094 counting only the distinct ones).

The product of its (nonzero) digits is 1000000, while the sum is 44.

The spelling of 125455515002225 in words is "one hundred twenty-five trillion, four hundred fifty-five billion, five hundred fifteen million, two thousand, two hundred twenty-five".