525449397 has 24 divisors (see below), whose sum is σ = 772089472. Its totient is φ = 317623680.

The previous prime is 525449381. The next prime is 525449437. The reversal of 525449397 is 793944525.

It is not a de Polignac number, because 525449397 - 2⁴ = 525449381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525449297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155508 + ... + 158850.

Almost surely, 2^525449397 is an apocalyptic number.

It is an amenable number.

525449397 is a deficient number, since it is larger than the sum of its proper divisors (246640075).

525449397 is a wasteful number, since it uses less digits than its factorization.

525449397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801 (or 3790 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 48.

The square root of 525449397 is about 22922.6830235904. The cubic root of 525449397 is about 806.9444383159.

The spelling of 525449397 in words is "five hundred twenty-five million, four hundred forty-nine thousand, three hundred ninety-seven".