250505345 has 8 divisors (see below), whose sum is σ = 305534760. Its totient is φ = 197118720.

The previous prime is 250505317. The next prime is 250505399. The reversal of 250505345 is 543505052.

It is a happy number.

250505345 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 4 ways, for example, as 30991489 + 219513856 = 5567^2 + 14816^2 .

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

It is not a de Polignac number, because 250505345 - 2¹² = 250501249 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410360 + ... + 410969.

It is an arithmetic number, because the mean of its divisors is an integer number (38191845).

Almost surely, 2^250505345 is an apocalyptic number.

It is an amenable number.

250505345 is a deficient number, since it is larger than the sum of its proper divisors (55029415).

250505345 is an equidigital number, since it uses as much as digits as its factorization.

250505345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821395.

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 250505345 is about 15827.3606454140. The cubic root of 250505345 is about 630.3847024697.

The spelling of 250505345 in words is "two hundred fifty million, five hundred five thousand, three hundred forty-five".