251330272 has 24 divisors (see below), whose sum is σ = 495180000. Its totient is φ = 125570304.

The previous prime is 251330263. The next prime is 251330279. The reversal of 251330272 is 272033152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251330279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62004 + ... + 65932.

It is an arithmetic number, because the mean of its divisors is an integer number (20632500).

Almost surely, 2^251330272 is an apocalyptic number.

It is an amenable number.

251330272 is a deficient number, since it is larger than the sum of its proper divisors (243849728).

251330272 is a wasteful number, since it uses less digits than its factorization.

251330272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5938 (or 5930 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 251330272 is about 15853.3993830976. The cubic root of 251330272 is about 631.0759073944.

The spelling of 251330272 in words is "two hundred fifty-one million, three hundred thirty thousand, two hundred seventy-two".