250655161 has 4 divisors (see below), whose sum is σ = 254764324. Its totient is φ = 246546000.

The previous prime is 250655113. The next prime is 250655189. The reversal of 250655161 is 161556052.

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 18275625 + 232379536 = 4275^2 + 15244^2 .

It is a cyclic number.

It is not a de Polignac number, because 250655161 - 2¹¹ = 250653113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250655261) 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, 2054490 + ... + 2054611.

It is an arithmetic number, because the mean of its divisors is an integer number (63691081).

Almost surely, 2^250655161 is an apocalyptic number.

It is an amenable number.

250655161 is a deficient number, since it is larger than the sum of its proper divisors (4109163).

250655161 is an equidigital number, since it uses as much as digits as its factorization.

250655161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109162.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 250655161 is about 15832.0927549077. The cubic root of 250655161 is about 630.5103456886.

The spelling of 250655161 in words is "two hundred fifty million, six hundred fifty-five thousand, one hundred sixty-one".