251344055 has 8 divisors (see below), whose sum is σ = 304599744. Its totient is φ = 199084000.

The previous prime is 251344043. The next prime is 251344057. The reversal of 251344055 is 550443152.

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

It is not a de Polignac number, because 251344055 - 2⁴ = 251344039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251344057) 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 7 ways as a sum of consecutive naturals, for example, 248351 + ... + 249360.

It is an arithmetic number, because the mean of its divisors is an integer number (38074968).

Almost surely, 2^251344055 is an apocalyptic number.

251344055 is a deficient number, since it is larger than the sum of its proper divisors (53255689).

251344055 is a wasteful number, since it uses less digits than its factorization.

251344055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497817.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 251344055 is about 15853.8340788593. The cubic root of 251344055 is about 631.0874432912.

The spelling of 251344055 in words is "two hundred fifty-one million, three hundred forty-four thousand, fifty-five".