257005422 has 24 divisors (see below), whose sum is σ = 589601376. Its totient is φ = 80629056.

The previous prime is 257005421. The next prime is 257005423. The reversal of 257005422 is 224500752.

257005422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (257005421) and next prime (257005423).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257005421) 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 11 ways as a sum of consecutive naturals, for example, 419638 + ... + 420249.

It is an arithmetic number, because the mean of its divisors is an integer number (24566724).

Almost surely, 2^257005422 is an apocalyptic number.

257005422 is an abundant number, since it is smaller than the sum of its proper divisors (332595954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257005422 is a wasteful number, since it uses less digits than its factorization.

257005422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839912 (or 839909 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 257005422 is about 16031.3886485232. The cubic root of 257005422 is about 635.7905890604.

The spelling of 257005422 in words is "two hundred fifty-seven million, five thousand, four hundred twenty-two".