250165220 has 12 divisors (see below), whose sum is σ = 525347004. Its totient is φ = 100066080.

The previous prime is 250165219. The next prime is 250165261. The reversal of 250165220 is 22561052.

It can be written as a sum of positive squares in 2 ways, for example, as 171452836 + 78712384 = 13094^2 + 8872^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6254111 + ... + 6254150.

It is an arithmetic number, because the mean of its divisors is an integer number (43778917).

Almost surely, 2^250165220 is an apocalyptic number.

250165220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250165220 is an abundant number, since it is smaller than the sum of its proper divisors (275181784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

250165220 is a wasteful number, since it uses less digits than its factorization.

250165220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12508270 (or 12508268 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 250165220 is about 15816.6121530497. The cubic root of 250165220 is about 630.0992704911.

The spelling of 250165220 in words is "two hundred fifty million, one hundred sixty-five thousand, two hundred twenty".