250390625 has 18 divisors (see below), whose sum is σ = 313476402. Its totient is φ = 200000000.

The previous prime is 250390589. The next prime is 250390633. The reversal of 250390625 is 526093052.

250390625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 9 ways, for example, as 139972561 + 110418064 = 11831^2 + 10508^2 .

It is not a de Polignac number, because 250390625 - 2⁶ = 250390561 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 250390591 and 250390600.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 390305 + ... + 390945.

Almost surely, 2^250390625 is an apocalyptic number.

250390625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250390625 is a deficient number, since it is larger than the sum of its proper divisors (63085777).

250390625 is an frugal number, since it uses more digits than its factorization.

250390625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 250390625 is about 15823.7361264652. The cubic root of 250390625 is about 630.2884586480.

The spelling of 250390625 in words is "two hundred fifty million, three hundred ninety thousand, six hundred twenty-five".