257255573 has 8 divisors (see below), whose sum is σ = 272865120. Its totient is φ = 241853040.

The previous prime is 257255563. The next prime is 257255597. The reversal of 257255573 is 375552752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257255573 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 257255573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257255513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49190 + ... + 54167.

It is an arithmetic number, because the mean of its divisors is an integer number (34108140).

Almost surely, 2^257255573 is an apocalyptic number.

It is an amenable number.

257255573 is a deficient number, since it is larger than the sum of its proper divisors (15609547).

257255573 is a wasteful number, since it uses less digits than its factorization.

257255573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103507.

The product of its digits is 367500, while the sum is 41.

The square root of 257255573 is about 16039.1886640191. The cubic root of 257255573 is about 635.9968001171.

The spelling of 257255573 in words is "two hundred fifty-seven million, two hundred fifty-five thousand, five hundred seventy-three".