250040000025 has 18 divisors (see below), whose sum is σ = 447849422670. Its totient is φ = 133354666560.

The previous prime is 250040000017. The next prime is 250040000029. The reversal of 250040000025 is 520000040052.

It can be written as a sum of positive squares in 3 ways, for example, as 7287695424 + 242752304601 = 85368^2 + 492699^2 .

It is not a de Polignac number, because 250040000025 - 2³ = 250040000017 is a prime.

It is a super-2 number, since 2×250040000025² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 250039999962 and 250040000007.

It is not an unprimeable number, because it can be changed into a prime (250040000029) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 555644220 + ... + 555644669.

Almost surely, 2^250040000025 is an apocalyptic number.

250040000025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250040000025 is a deficient number, since it is larger than the sum of its proper divisors (197809422645).

250040000025 is a wasteful number, since it uses less digits than its factorization.

250040000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111288905 (or 1111288897 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

Adding to 250040000025 its reverse (520000040052), we get a palindrome (770040040077).

The spelling of 250040000025 in words is "two hundred fifty billion, forty million, twenty-five", and thus it is an aban number.