526393661 has 8 divisors (see below), whose sum is σ = 558658944. Its totient is φ = 494272960.

The previous prime is 526393649. The next prime is 526393691. The reversal of 526393661 is 166393625.

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

It is not a de Polignac number, because 526393661 - 2⁶ = 526393597 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 (526393691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28595 + ... + 43248.

It is an arithmetic number, because the mean of its divisors is an integer number (69832368).

Almost surely, 2^526393661 is an apocalyptic number.

It is an amenable number.

526393661 is a deficient number, since it is larger than the sum of its proper divisors (32265283).

526393661 is a wasteful number, since it uses less digits than its factorization.

526393661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72291.

The product of its digits is 174960, while the sum is 41.

The square root of 526393661 is about 22943.2704948532. The cubic root of 526393661 is about 807.4275248625.

The spelling of 526393661 in words is "five hundred twenty-six million, three hundred ninety-three thousand, six hundred sixty-one".