249856226 has 4 divisors (see below), whose sum is σ = 374784342. Its totient is φ = 124928112.

The previous prime is 249856219. The next prime is 249856247. The reversal of 249856226 is 622658942.

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

It can be written as a sum of positive squares in only one way, i.e., 202920025 + 46936201 = 14245^2 + 6851^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62464055 + ... + 62464058.

Almost surely, 2^249856226 is an apocalyptic number.

249856226 is a deficient number, since it is larger than the sum of its proper divisors (124928116).

249856226 is a wasteful number, since it uses less digits than its factorization.

249856226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124928115.

The product of its digits is 414720, while the sum is 44.

The square root of 249856226 is about 15806.8411138975. The cubic root of 249856226 is about 629.8397391973.

The spelling of 249856226 in words is "two hundred forty-nine million, eight hundred fifty-six thousand, two hundred twenty-six".