521765485 has 8 divisors (see below), whose sum is σ = 626849280. Its totient is φ = 416925264.

The previous prime is 521765449. The next prime is 521765501. The reversal of 521765485 is 584567125.

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 521765485 - 2⁷ = 521765357 is a prime.

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, 56145 + ... + 64774.

It is an arithmetic number, because the mean of its divisors is an integer number (78356160).

Almost surely, 2^521765485 is an apocalyptic number.

It is an amenable number.

521765485 is a deficient number, since it is larger than the sum of its proper divisors (105083795).

521765485 is a wasteful number, since it uses less digits than its factorization.

521765485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121787.

The product of its digits is 336000, while the sum is 43.

The square root of 521765485 is about 22842.1865196833. The cubic root of 521765485 is about 805.0541917918.

The spelling of 521765485 in words is "five hundred twenty-one million, seven hundred sixty-five thousand, four hundred eighty-five".