257583253 has 4 divisors (see below), whose sum is σ = 258076288. Its totient is φ = 257090220.

The previous prime is 257583217. The next prime is 257583259. The reversal of 257583253 is 352385752.

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 a de Polignac number, because none of the positive numbers 2^k-257583253 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 (257583259) 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, 245733 + ... + 246778.

It is an arithmetic number, because the mean of its divisors is an integer number (64519072).

Almost surely, 2^257583253 is an apocalyptic number.

It is an amenable number.

257583253 is a deficient number, since it is larger than the sum of its proper divisors (493035).

257583253 is an equidigital number, since it uses as much as digits as its factorization.

257583253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493034.

The product of its digits is 252000, while the sum is 40.

The square root of 257583253 is about 16049.4003937842. The cubic root of 257583253 is about 636.2667197755.

The spelling of 257583253 in words is "two hundred fifty-seven million, five hundred eighty-three thousand, two hundred fifty-three".