250000625 has 20 divisors (see below), whose sum is σ = 357035712. Its totient is φ = 171426000.

The previous prime is 250000577. The next prime is 250000633. The reversal of 250000625 is 526000052.

It is a happy number.

It is not a de Polignac number, because 250000625 - 2⁸ = 250000369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 250000597 and 250000606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24197 + ... + 32946.

Almost surely, 2^250000625 is an apocalyptic number.

250000625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250000625 is a deficient number, since it is larger than the sum of its proper divisors (107035087).

250000625 is an frugal number, since it uses more digits than its factorization.

250000625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57170 (or 57155 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 250000625 is about 15811.4080650649. The cubic root of 250000625 is about 629.9610499141.

Adding to 250000625 its reverse (526000052), we get a palindrome (776000677).

It can be divided in two parts, 250000 and 625, that multiplied together give a square (156250000 = 12500²).

The spelling of 250000625 in words is "two hundred fifty million, six hundred twenty-five", and thus it is an aban number.