25185425055 has 16 divisors (see below), whose sum is σ = 46053348864. Its totient is φ = 11513337120.

The previous prime is 25185425051. The next prime is 25185425099. The reversal of 25185425055 is 55052458152.

It is not a de Polignac number, because 25185425055 - 2² = 25185425051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25185424998 and 25185425016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25185425051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119930491 + ... + 119930700.

It is an arithmetic number, because the mean of its divisors is an integer number (2878334304).

Almost surely, 2^25185425055 is an apocalyptic number.

25185425055 is a deficient number, since it is larger than the sum of its proper divisors (20867923809).

25185425055 is a wasteful number, since it uses less digits than its factorization.

25185425055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239861206.

The product of its (nonzero) digits is 400000, while the sum is 42.

The spelling of 25185425055 in words is "twenty-five billion, one hundred eighty-five million, four hundred twenty-five thousand, fifty-five".