257965453 has 4 divisors (see below), whose sum is σ = 258196288. Its totient is φ = 257734620.

The previous prime is 257965441. The next prime is 257965459. The reversal of 257965453 is 354569752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 257965453 - 2¹³ = 257957261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257965459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113733 + ... + 115978.

It is an arithmetic number, because the mean of its divisors is an integer number (64549072).

Almost surely, 2^257965453 is an apocalyptic number.

It is an amenable number.

257965453 is a deficient number, since it is larger than the sum of its proper divisors (230835).

257965453 is a wasteful number, since it uses less digits than its factorization.

257965453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230834.

The product of its digits is 1134000, while the sum is 46.

The square root of 257965453 is about 16061.3029670696. The cubic root of 257965453 is about 636.5812601035.

The spelling of 257965453 in words is "two hundred fifty-seven million, nine hundred sixty-five thousand, four hundred fifty-three".