25025250025 has 24 divisors (see below), whose sum is σ = 31127493824. Its totient is φ = 19958270400.

The previous prime is 25025250017. The next prime is 25025250049. The reversal of 25025250025 is 52005252052.

It is not a de Polignac number, because 25025250025 - 2³ = 25025250017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25025249975 and 25025250002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17293852 + ... + 17295298.

Almost surely, 2^25025250025 is an apocalyptic number.

25025250025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25025250025 is a deficient number, since it is larger than the sum of its proper divisors (6102243799).

25025250025 is a wasteful number, since it uses less digits than its factorization.

25025250025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The spelling of 25025250025 in words is "twenty-five billion, twenty-five million, two hundred fifty thousand, twenty-five".