250730345 has 4 divisors (see below), whose sum is σ = 300876420. Its totient is φ = 200584272.

The previous prime is 250730341. The next prime is 250730351. The reversal of 250730345 is 543037052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185395456 + 65334889 = 13616^2 + 8083^2 .

It is a cyclic number.

It is not a de Polignac number, because 250730345 - 2² = 250730341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (250730341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25073030 + ... + 25073039.

It is an arithmetic number, because the mean of its divisors is an integer number (75219105).

Almost surely, 2^250730345 is an apocalyptic number.

It is an amenable number.

250730345 is a deficient number, since it is larger than the sum of its proper divisors (50146075).

250730345 is an equidigital number, since it uses as much as digits as its factorization.

250730345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50146074.

The product of its (nonzero) digits is 12600, while the sum is 29.

The square root of 250730345 is about 15834.4669945028. The cubic root of 250730345 is about 630.5733798997.

Adding to 250730345 its reverse (543037052), we get a palindrome (793767397).

The spelling of 250730345 in words is "two hundred fifty million, seven hundred thirty thousand, three hundred forty-five".