257473375 has 16 divisors (see below), whose sum is σ = 326604096. Its totient is φ = 202596000.

The previous prime is 257473361. The next prime is 257473393. The reversal of 257473375 is 573374752.

It is not a de Polignac number, because 257473375 - 2¹¹ = 257471327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9259 + ... + 24508.

It is an arithmetic number, because the mean of its divisors is an integer number (20412756).

Almost surely, 2^257473375 is an apocalyptic number.

257473375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257473375 is a deficient number, since it is larger than the sum of its proper divisors (69130721).

257473375 is an equidigital number, since it uses as much as digits as its factorization.

257473375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33843 (or 33833 counting only the distinct ones).

The product of its digits is 617400, while the sum is 43.

The square root of 257473375 is about 16045.9769101168. The cubic root of 257473375 is about 636.1762355573.

The spelling of 257473375 in words is "two hundred fifty-seven million, four hundred seventy-three thousand, three hundred seventy-five".