257053473 has 16 divisors (see below), whose sum is σ = 386506560. Its totient is φ = 168810048.

The previous prime is 257053469. The next prime is 257053499. The reversal of 257053473 is 374350752.

257053473 is a `hidden beast` number, since 2 + 57 + 0 + 534 + 73 = 666.

It is not a de Polignac number, because 257053473 - 2² = 257053469 is a prime.

It is not an unprimeable number, because it can be changed into a prime (257053403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69240 + ... + 72857.

It is an arithmetic number, because the mean of its divisors is an integer number (24156660).

Almost surely, 2^257053473 is an apocalyptic number.

It is an amenable number.

257053473 is a deficient number, since it is larger than the sum of its proper divisors (129453087).

257053473 is a wasteful number, since it uses less digits than its factorization.

257053473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142173 (or 142167 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 36.

The square root of 257053473 is about 16032.8872321862. The cubic root of 257053473 is about 635.8302101050.

The spelling of 257053473 in words is "two hundred fifty-seven million, fifty-three thousand, four hundred seventy-three".