257093473 has 16 divisors (see below), whose sum is σ = 318035200. Its totient is φ = 202378176.

The previous prime is 257093461. The next prime is 257093483. The reversal of 257093473 is 374390752.

It is a de Polignac number, because none of the positive numbers 2^k-257093473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257093423) 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 15 ways as a sum of consecutive naturals, for example, 11011 + ... + 25207.

It is an arithmetic number, because the mean of its divisors is an integer number (19877200).

Almost surely, 2^257093473 is an apocalyptic number.

It is an amenable number.

257093473 is a deficient number, since it is larger than the sum of its proper divisors (60941727).

257093473 is a wasteful number, since it uses less digits than its factorization.

257093473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14416.

The product of its (nonzero) digits is 158760, while the sum is 40.

The square root of 257093473 is about 16034.1346196170. The cubic root of 257093473 is about 635.8631888325.

The spelling of 257093473 in words is "two hundred fifty-seven million, ninety-three thousand, four hundred seventy-three".