250015222 has 4 divisors (see below), whose sum is σ = 375022836. Its totient is φ = 125007610.

The previous prime is 250015219. The next prime is 250015229. The reversal of 250015222 is 222510052.

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

It is a super-2 number, since 2×250015222² = 125015222463418568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 250015222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250015229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62503804 + ... + 62503807.

It is an arithmetic number, because the mean of its divisors is an integer number (93755709).

Almost surely, 2^250015222 is an apocalyptic number.

250015222 is a deficient number, since it is larger than the sum of its proper divisors (125007614).

250015222 is a wasteful number, since it uses less digits than its factorization.

250015222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125007613.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 250015222 is about 15811.8696554203. The cubic root of 250015222 is about 629.9733103668.

Adding to 250015222 its reverse (222510052), we get a palindrome (472525274).

The spelling of 250015222 in words is "two hundred fifty million, fifteen thousand, two hundred twenty-two".