526166 has 4 divisors (see below), whose sum is σ = 789252. Its totient is φ = 263082.

The previous prime is 526159. The next prime is 526189. The reversal of 526166 is 661625.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

526166 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131540 + ... + 131543.

It is an arithmetic number, because the mean of its divisors is an integer number (197313).

2⁵²⁶¹⁶⁶ is an apocalyptic number.

526166 is a deficient number, since it is larger than the sum of its proper divisors (263086).

526166 is a wasteful number, since it uses less digits than its factorization.

526166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263085.

The product of its digits is 2160, while the sum is 26.

The square root of 526166 is about 725.3730074934. The cubic root of 526166 is about 80.7311106120.

The spelling of 526166 in words is "five hundred twenty-six thousand, one hundred sixty-six".