526642089 has 8 divisors (see below), whose sum is σ = 719316192. Its totient is φ = 342531360.

The previous prime is 526642073. The next prime is 526642091. The reversal of 526642089 is 980246625.

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

It is not a de Polignac number, because 526642089 - 2⁴ = 526642073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 526642089.

It is not an unprimeable number, because it can be changed into a prime (526642069) 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, 2140699 + ... + 2140944.

It is an arithmetic number, because the mean of its divisors is an integer number (89914524).

Almost surely, 2^526642089 is an apocalyptic number.

It is an amenable number.

526642089 is a deficient number, since it is larger than the sum of its proper divisors (192674103).

526642089 is a wasteful number, since it uses less digits than its factorization.

526642089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281687.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 526642089 is about 22948.6838184677. The cubic root of 526642089 is about 807.5545249089.

The spelling of 526642089 in words is "five hundred twenty-six million, six hundred forty-two thousand, eighty-nine".