25185415350225 has 24 divisors (see below), whose sum is σ = 44842954922752. Its totient is φ = 12398973710400.

The previous prime is 25185415350203. The next prime is 25185415350233. The reversal of 25185415350225 is 52205351458152.

It is not a de Polignac number, because 25185415350225 - 2²² = 25185411155921 is a prime.

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 12915596641 + ... + 12915598590.

Almost surely, 2^{25185415350225} is an apocalyptic number.

25185415350225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25185415350225 is a deficient number, since it is larger than the sum of its proper divisors (19657539572527).

25185415350225 is a wasteful number, since it uses less digits than its factorization.

25185415350225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25831195257 (or 25831195252 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 48.

The spelling of 25185415350225 in words is "twenty-five trillion, one hundred eighty-five billion, four hundred fifteen million, three hundred fifty thousand, two hundred twenty-five".