257269225 has 6 divisors (see below), whose sum is σ = 319013870. Its totient is φ = 205815360.

The previous prime is 257269183. The next prime is 257269249. The reversal of 257269225 is 522962752.

It can be written as a sum of positive squares in 3 ways, for example, as 404496 + 256864729 = 636^2 + 16027^2 .

It is not a de Polignac number, because 257269225 - 2²⁷ = 123051497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5145360 + ... + 5145409.

Almost surely, 2^257269225 is an apocalyptic number.

257269225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

257269225 is a deficient number, since it is larger than the sum of its proper divisors (61744645).

257269225 is a wasteful number, since it uses less digits than its factorization.

257269225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290779 (or 10290774 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 257269225 is about 16039.6142409972. The cubic root of 257269225 is about 636.0080502455.

The spelling of 257269225 in words is "two hundred fifty-seven million, two hundred sixty-nine thousand, two hundred twenty-five".