251250022 has 8 divisors (see below), whose sum is σ = 393260976. Its totient is φ = 120163032.

The previous prime is 251250019. The next prime is 251250029. The reversal of 251250022 is 220052152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251250029) 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 3 ways as a sum of consecutive naturals, for example, 2730933 + ... + 2731024.

It is an arithmetic number, because the mean of its divisors is an integer number (49157622).

Almost surely, 2^251250022 is an apocalyptic number.

251250022 is a deficient number, since it is larger than the sum of its proper divisors (142010954).

251250022 is a wasteful number, since it uses less digits than its factorization.

251250022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5461982.

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

The square root of 251250022 is about 15850.8681781157. The cubic root of 251250022 is about 631.0087325275.

The spelling of 251250022 in words is "two hundred fifty-one million, two hundred fifty thousand, twenty-two".