257527325 has 18 divisors (see below), whose sum is σ = 351007482. Its totient is φ = 187290400.

The previous prime is 257527321. The next prime is 257527327. The reversal of 257527325 is 523725752.

It can be written as a sum of positive squares in 3 ways, for example, as 662596 + 256864729 = 814^2 + 16027^2 .

It is not a de Polignac number, because 257527325 - 2² = 257527321 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 (257527321) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39542 + ... + 45591.

Almost surely, 2^257527325 is an apocalyptic number.

257527325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

257527325 is a deficient number, since it is larger than the sum of its proper divisors (93480157).

257527325 is a wasteful number, since it uses less digits than its factorization.

257527325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85165 (or 85149 counting only the distinct ones).

The product of its digits is 147000, while the sum is 38.

The square root of 257527325 is about 16047.6579288069. The cubic root of 257527325 is about 636.2206664439.

The spelling of 257527325 in words is "two hundred fifty-seven million, five hundred twenty-seven thousand, three hundred twenty-five".