525330661 has 8 divisors (see below), whose sum is σ = 529416000. Its totient is φ = 521253600.

The previous prime is 525330607. The next prime is 525330671. The reversal of 525330661 is 166033525.

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 525330661 - 2²⁷ = 391112933 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 (525330671) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 193290 + ... + 195988.

It is an arithmetic number, because the mean of its divisors is an integer number (66177000).

Almost surely, 2^525330661 is an apocalyptic number.

It is an amenable number.

525330661 is a deficient number, since it is larger than the sum of its proper divisors (4085339).

525330661 is a wasteful number, since it uses less digits than its factorization.

525330661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 525330661 is about 22920.0929535637. The cubic root of 525330661 is about 806.8836518898.

The spelling of 525330661 in words is "five hundred twenty-five million, three hundred thirty thousand, six hundred sixty-one".