257504426 has 8 divisors (see below), whose sum is σ = 386478624. Its totient is φ = 128678220.

The previous prime is 257504417. The next prime is 257504437. The reversal of 257504426 is 624405752.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32540 + ... + 39671.

It is an arithmetic number, because the mean of its divisors is an integer number (48309828).

Almost surely, 2^257504426 is an apocalyptic number.

257504426 is a deficient number, since it is larger than the sum of its proper divisors (128974198).

257504426 is a wasteful number, since it uses less digits than its factorization.

257504426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73996.

The product of its (nonzero) digits is 67200, while the sum is 35.

The square root of 257504426 is about 16046.9444443483. The cubic root of 257504426 is about 636.2018085760.

The spelling of 257504426 in words is "two hundred fifty-seven million, five hundred four thousand, four hundred twenty-six".