250550000025 has 24 divisors (see below), whose sum is σ = 446107488960. Its totient is φ = 123347691840.

The previous prime is 250549999979. The next prime is 250550000053. The reversal of 250550000025 is 520000055052.

It is not a de Polignac number, because 250550000025 - 2⁷ = 250549999897 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128486205 + ... + 128488154.

It is an arithmetic number, because the mean of its divisors is an integer number (18587812040).

Almost surely, 2^250550000025 is an apocalyptic number.

250550000025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250550000025 is a deficient number, since it is larger than the sum of its proper divisors (195557488935).

250550000025 is a wasteful number, since it uses less digits than its factorization.

250550000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256974385 (or 256974380 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

Adding to 250550000025 its reverse (520000055052), we get a palindrome (770550055077).

The spelling of 250550000025 in words is "two hundred fifty billion, five hundred fifty million, twenty-five", and thus it is an aban number.