257775325 has 24 divisors (see below), whose sum is σ = 332521376. Its totient is φ = 198072000.

The previous prime is 257775311. The next prime is 257775359. The reversal of 257775325 is 523577752.

It is a happy number.

It is not a de Polignac number, because 257775325 - 2⁵ = 257775293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 63610 + ... + 67540.

Almost surely, 2^257775325 is an apocalyptic number.

257775325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

257775325 is a deficient number, since it is larger than the sum of its proper divisors (74746051).

257775325 is a wasteful number, since it uses less digits than its factorization.

257775325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4045 (or 4040 counting only the distinct ones).

The product of its digits is 514500, while the sum is 43.

The square root of 257775325 is about 16055.3830536677. The cubic root of 257775325 is about 636.4248287322.

The spelling of 257775325 in words is "two hundred fifty-seven million, seven hundred seventy-five thousand, three hundred twenty-five".