525249605 has 8 divisors (see below), whose sum is σ = 630533112. Its totient is φ = 420043968.

The previous prime is 525249587. The next prime is 525249611. The reversal of 525249605 is 506942525.

It can be written as a sum of positive squares in 4 ways, for example, as 200024449 + 325225156 = 14143^2 + 18034^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 525249605 - 2⁸ = 525249349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3422 + ... + 32591.

It is an arithmetic number, because the mean of its divisors is an integer number (78816639).

Almost surely, 2^525249605 is an apocalyptic number.

It is an amenable number.

525249605 is a deficient number, since it is larger than the sum of its proper divisors (105283507).

525249605 is a wasteful number, since it uses less digits than its factorization.

525249605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38935.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 525249605 is about 22918.3246551750. The cubic root of 525249605 is about 806.8421503301.

The spelling of 525249605 in words is "five hundred twenty-five million, two hundred forty-nine thousand, six hundred five".