25025055025 has 12 divisors (see below), whose sum is σ = 31557020400. Its totient is φ = 19680720080.

The previous prime is 25025055023. The next prime is 25025055031. The reversal of 25025055025 is 52055052052.

It is not a de Polignac number, because 25025055025 - 2¹ = 25025055023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25025055023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8481595 + ... + 8484544.

It is an arithmetic number, because the mean of its divisors is an integer number (2629751700).

Almost surely, 2^25025055025 is an apocalyptic number.

25025055025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25025055025 is a deficient number, since it is larger than the sum of its proper divisors (6531965375).

25025055025 is a wasteful number, since it uses less digits than its factorization.

25025055025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16966208 (or 16966203 counting only the distinct ones).

The product of its (nonzero) digits is 25000, while the sum is 31.

The spelling of 25025055025 in words is "twenty-five billion, twenty-five million, fifty-five thousand, twenty-five".