257222575 has 6 divisors (see below), whose sum is σ = 318956024. Its totient is φ = 205778040.

The previous prime is 257222573. The next prime is 257222579. The reversal of 257222575 is 575222752.

It is not a de Polignac number, because 257222575 - 2¹ = 257222573 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 (257222573) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 5144427 + ... + 5144476.

Almost surely, 2^257222575 is an apocalyptic number.

257222575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257222575 is a deficient number, since it is larger than the sum of its proper divisors (61733449).

257222575 is a wasteful number, since it uses less digits than its factorization.

257222575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10288913 (or 10288908 counting only the distinct ones).

The product of its digits is 98000, while the sum is 37.

The square root of 257222575 is about 16038.1599630382. The cubic root of 257222575 is about 635.9696059932.

The spelling of 257222575 in words is "two hundred fifty-seven million, two hundred twenty-two thousand, five hundred seventy-five".