25451401525045 has 16 divisors (see below), whose sum is σ = 30552427993968. Its totient is φ = 20353958000640.

The previous prime is 25451401525019. The next prime is 25451401525057. The reversal of 25451401525045 is 54052510415452.

It can be written as a sum of positive squares in 8 ways, for example, as 2107729047204 + 23343672477841 = 1451802^2 + 4831529^2 .

It is not a de Polignac number, because 25451401525045 - 2⁵ = 25451401525013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25451401524992 and 25451401525010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275220115 + ... + 275312575.

It is an arithmetic number, because the mean of its divisors is an integer number (1909526749623).

Almost surely, 2^{25451401525045} is an apocalyptic number.

It is an amenable number.

25451401525045 is a deficient number, since it is larger than the sum of its proper divisors (5101026468923).

25451401525045 is a wasteful number, since it uses less digits than its factorization.

25451401525045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111240.

The product of its (nonzero) digits is 800000, while the sum is 43.

The spelling of 25451401525045 in words is "twenty-five trillion, four hundred fifty-one billion, four hundred one million, five hundred twenty-five thousand, forty-five".