250125565 has 8 divisors (see below), whose sum is σ = 300304440. Its totient is φ = 199997952.

The previous prime is 250125553. The next prime is 250125569. The reversal of 250125565 is 565521052.

It can be written as a sum of positive squares in 4 ways, for example, as 29127609 + 220997956 = 5397^2 + 14866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 250125565 - 2¹⁹ = 249601277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250125569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104 + ... + 22393.

It is an arithmetic number, because the mean of its divisors is an integer number (37538055).

Almost surely, 2^250125565 is an apocalyptic number.

It is an amenable number.

250125565 is a deficient number, since it is larger than the sum of its proper divisors (50178875).

250125565 is a wasteful number, since it uses less digits than its factorization.

250125565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25631.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 250125565 is about 15815.3585163284. The cubic root of 250125565 is about 630.0659752860.

The spelling of 250125565 in words is "two hundred fifty million, one hundred twenty-five thousand, five hundred sixty-five".