250517225 has 24 divisors (see below), whose sum is σ = 367268160. Its totient is φ = 165856320.

The previous prime is 250517209. The next prime is 250517227. The reversal of 250517225 is 522715052.

It is not a de Polignac number, because 250517225 - 2⁴ = 250517209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (250517227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19607 + ... + 29756.

It is an arithmetic number, because the mean of its divisors is an integer number (15302840).

Almost surely, 2^250517225 is an apocalyptic number.

250517225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250517225 is a deficient number, since it is larger than the sum of its proper divisors (116750935).

250517225 is a wasteful number, since it uses less digits than its factorization.

250517225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49409 (or 49404 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 250517225 is about 15827.7359404306. The cubic root of 250517225 is about 630.3946674625.

The spelling of 250517225 in words is "two hundred fifty million, five hundred seventeen thousand, two hundred twenty-five".