250706161 has 6 divisors (see below), whose sum is σ = 254508450. Its totient is φ = 246959856.

The previous prime is 250706149. The next prime is 250706167. The reversal of 250706161 is 161607052.

It can be written as a sum of positive squares in only one way, i.e., 241615936 + 9090225 = 15544^2 + 3015^2 .

It is not a de Polignac number, because 250706161 - 2¹³ = 250697969 is a prime.

It is a super-3 number, since 3×250706161³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (250706167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23436 + ... + 32413.

It is an arithmetic number, because the mean of its divisors is an integer number (42418075).

Almost surely, 2^250706161 is an apocalyptic number.

It is an amenable number.

250706161 is a deficient number, since it is larger than the sum of its proper divisors (3802289).

250706161 is an frugal number, since it uses more digits than its factorization.

250706161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55983 (or 55916 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 250706161 is about 15833.7033255016. The cubic root of 250706161 is about 630.5531054265.

The spelling of 250706161 in words is "two hundred fifty million, seven hundred six thousand, one hundred sixty-one".