525661166 has 8 divisors (see below), whose sum is σ = 796298904. Its totient is φ = 260228200.

The previous prime is 525661151. The next prime is 525661177. The reversal of 525661166 is 661166525.

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

It is a super-2 number, since 2×525661166² = 552639322880959112, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300940 + ... + 1301343.

It is an arithmetic number, because the mean of its divisors is an integer number (99537363).

Almost surely, 2^525661166 is an apocalyptic number.

525661166 is a deficient number, since it is larger than the sum of its proper divisors (270637738).

525661166 is a wasteful number, since it uses less digits than its factorization.

525661166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602386.

The product of its digits is 64800, while the sum is 38.

The square root of 525661166 is about 22927.3017601287. The cubic root of 525661166 is about 807.0528298919.

The spelling of 525661166 in words is "five hundred twenty-five million, six hundred sixty-one thousand, one hundred sixty-six".